all right today guys we're going to be
replacing the radio in this 2004 Chevy
Cavalier just want to show you the
procedure to get the dash off and stuff
first but the primary reason I'm doing
this video is to show you after how you
replace the radio how you get it out of
an unlocked state so let's go ahead and
get started on how we have to get it off
so in order to get it off there's a
couple of things we going to do before
we can pull this panel off we're going
to start up here we're gonna remove a
screw to get this trim piece off it's
just a Philips screw and once we pull
this screw off then we should be able to
remove this trim piece now on these
cavaliers in particular where i've seen
over the years and some sun fires to the
plastic gets really really damaged from
the sun you can see up here there's a
lot of cracking and so a lot of the
stuff is going to be on the fragile side
so you definitely want to be using the
right tools for this and you would
definitely want to go kind of slow and
methodical so you don't damage anything
once you get that cover off for the
defroster there's a couple of t15 bolts
here Torx bolts and we're gonna remove
those next one on each side there's the
sky and there's one on the left try to
park this guy in the shade today because
it's super hot for this job I'll pull
these the rest of the way out myself in
a minute but you get the idea I'm gonna
remove these two here and then on the
side out here there's a panel that we're
going to remove excess panel that just
comes off and that's going to give us
access to this Torx screw here
and then we're going to do the same
thing on the driver's side with respect
to taking off this access panel and
removing the Torx screw that you find
there right so I'm going to go ahead and
I'm not necessarily going to show you
that side I'll show it to you after I'm
done but I'm going to go over I'm going
to remove that panel on the driver's
side take the screw off over there
finish taking the two that I loosened up
over here and then we'll come back
because we're going to proceed into the
glovebox next okay this is just a view
from the driver's side so when you come
in here you're going to notice there's a
screw here and a screw here it's this
one on the edge that you want to take
off because we're trying to get where we
can lift this panel up so I've got this
guy out now we're going to proceed into
the glovebox area now in the glovebox
there's a couple of screws that we're
going to remove that are right here and
here so there's one directly under this
AC vent and there's one right next to it
to the left and again we can use our t15
socket to get these out and then before
I forget
after I get these guys out I didn't show
you when I finally removed those ones on
the upper - when they come off the upper
- the one on the right is the longer one
the one on the left is the shorter one
again these were the ones that came from
the upper defroster duct on the -
alright so that's guys off and now we're
gonna take this guy off now you don't
have to use a tooth of t15 here you know
you could that will socket on these they
are hex headed screws all right now with
that out of the way there's a couple of
bolts that are right here eight
millimeter one and two and these the
next two we're gonna want to take off
and I thought I had the right size
socket on here but I didn't so let me go
change my socket and come back alright
guys I misread that it's a seven
millimeter socket so I just had to
change from the one I had to a seven now
I'm not going to take these all the way
out because I'm filming and I can't see
them that well with the camera in front
of them and I don't want them to fall
behind here so I'm just gonna loosen
them up and then I'm gonna stop the
camera and I get in here and take them
out by hand
got myself a little magnet in case I do
make a mistake and drop them down there
so I can fish them out alright that's
the deal here we're gonna take these two
guys off something right guys I've got
this out I'm just kind of showing you
you know basically I do is I loosen up
by hand and then as I take it off in my
hand I use a remote magnet to hold on to
it just to make sure it doesn't fall
back behind the - alright so with that
all taken care of the next step we're
going to have to do is to remove this
top piece and I've got my prying tool
I'm going to use to do that
it's basically just some latches that
you prize up I can see them right here
these little studs and they go into
these little holes again we just want to
go nice and slow because of how
everything's kind of cracked from the
plastic over the years side loose over
here and then whoops I did forget one
one screw and the far left above the
glovebox entry so whenever you're doing
something like this and something feels
like it's it's hard or stuck you know I
never force it I always just kind of go
slow and if it feels like I'm getting
some resistance it probably means like
what I just saw there and I forgot
something
okay so forget almost all of these out
there we go last one so I'm gonna take
this whole dash piece off and we're
gonna sit it aside out of the vehicle
and then with this out of the way we're
finally almost in a position where we
can get at what we need to get out here
which is this front piece now this guy's
held in by some additional screws you
can see one of them right here again
it's the same kind of t15 deal so I
never move this guy
and then we just have to go around and
see which other ones are like that that
we have to remove there's gonna be some
more clips there's another one right up
here on top the other thing I tell you
while you're in here you know I didn't
disconnect the battery because you don't
normally need to bother with it on this
procedure but make sure you stay away
from this passenger side airbag they
don't leave any tools on it don't lay
anything on it that might trigger it
just a good best practice all right so
now I'm gonna come over on the other
side and see if we have another screw
that's holding this piece on and yes we
do right here in the corner the far
corner is one okay with that guy out of
the way we should be able to remove this
trim piece and get access yep okay so
now actually comes the hard part I'm
gonna have to reach behind here and I'm
not going to be able to show this very
easily I'm going to reach behind here
and disconnect the headlight dimmer
switch and the signal let me pause for a
second get those route disconnected
alright guys I got the dimmer switch off
here the last thing left is the
cigarette lighter I've popped it out of
the bottom clips here and here for this
piece and then with this guy when you
got it in this position there's a little
knob on top or a little lever you just
give it a squeeze right you'll feel it
like right there right this guy right
here
and he comes out and with that out of
the way you can remove this and the way
I got the dimmer switch to release if
you look at the other side here you can
see this little clip here there's a
notch on this card edge connector
this guy right here and all you do is
you just need to lift that notch up very
carefully so you don't break it so you
can clear the little tab here
that's retaining it and this guy will
come right on unplugged here this it's
just like a literally like an
old-fashioned card edge connector I
don't know if you can can still see this
but that's what the deal is here all
right so this guy we're also gonna set
aside away from the vehicle and again be
super careful as I was taking this off I
noticed that it's got the beginning of a
little crack starting right there and I
managed to not break it or cause it to
get any worse so it's just part of
what's going on with these Cavaliers
when they get this old alright so all we
have left to get the radio out is we've
got two screws here and one screw here
so let me set this dash panel aside and
we'll pull the radio all right let's
take this set of screws off so we can
finally get this radio out another thing
I didn't mention on the previous piece
is when you're getting ready to remove
this um this - piece if you've got a
tilt wheel go ahead and tilt it all the
way down makes it a little bit easier to
get the clearance and put less stress on
that plastic all right so this guy
almost out here we get this guy this is
the factory original radio from 2004
this is the like the mid-range radio hey
this guy comes off and then the owner of
this vehicle actually has a third party
attachment here in the back and what
that attachment does just get this stuff
unplugged first you just kind of give
these guys a squeeze just like you see
here they come off and then the antenna
just pull straight up like that that's
like the same kind of connector since
like the 1940s no change it off alright
so what what we have here is the owner
has gotten a device that plugs into the
back of the radio
that is used to allow you to have an
auxilary input and we're gonna have to
remove this because you can't have
anything like this plugged in while
you're trying to unlock the radio using
that we're going to be using a tech 2
g-m tool today
this thing's wedged in there pretty good
to figure out how I can get in there and
get it out but we're gonna unhook this
so that we just go back to the original
harness which it looks like looks like
this guy is like spliced in here I
thought it was just a plug in kind of
thing well we may have to just um just
leave it unplugged like this and just
leave it be to get it hooked up I'll
have to kind of take a look at what this
is because this is an effector II deal
here alright so let's take a look at
this radio alongside the new radio and
talk about what we're gonna do alright
guys before we put this new radio in I
want to show you some information about
how to pick the right upgrade radio so
I'm gonna go to something called the GM
Heritage Center and I'm gonna look
specifically on am on google here right
this is all you need to do here for
Cavaliers and what the GM Heritage
Center is is for car collectors and
people restoring classic cars or older
cars they archive information this is a
2004 Cavalier and 2003 4 & 5 or the same
model series actually the last run of
the Cavalier so I'm going to pull up the
2005 Cavalier package and what this
package is is all kinds of information
about the Cavalier and what we're
particularly interested in is the radio
options and what we need to do here in
order to be able to unlock this stuff
using a GM Tech 2 we have to use a radio
that was originally available at the
time the product in the car you know the
car the vehicle as the product was in
production so what we're looking for
here is where the RPO codes are here it
is the RPO code lists RP o stands for
regular production option and these are
the codes that were used by the dealer
to place an order for the vehicle either
one that they order themselves and you
bought off the off the of a lot or they
ordered for you so I'm gonna come down
here and I'm also should see in the
introduction section a little bit about
information about the the radio itself
here
auto file audio file options so the o5
was the last year of this series and
this one would be compatible so they
tell us that there's three radios that
were offered a Plain Jane
AM FM and AM FM that has a CD player and
and then it's no I should say there but
I know and then there's this am/fm CD
with an mp3 player so those are the
three tiers so if we take a look at the
actual we don't count XM Radio that
would be something you'd see called a
digital radio receiver or something of
that nature we're just looking at
standard radio or to go down to pay page
16 here the RPO list just give me a
moment here to find it just scrolling
really slow here we go
this is the RPO list right these are all
the options on the vehicle all kinds of
stuff we are interested in the radios
which are going to stir around letter U
here we go okay so there's actually a
mistake on this so u l5 is actually
radio delete that means the person
ordered the car and there's no radio
some you might see on a fleet vehicle or
a government vehicle then we see you m7
which is a standard am/fm stereo and UN
0 which is am/fm stereo with a CD you
see a few speaker options type of this
is just the radio antenna that sits up
on the the back quarter panel here we
see us 8 this is the top radio am/fm
stereo CD and mp3 capable you know so
there's us 8 un 0 and um 7 are the three
types of radios now you'll see sometimes
some other radios listed you'll notice
they'll end up having the same
description this is this u u1 C is
actually the same description as u n 0
so it doesn't count as a separate radio
digital audio this is our XM radio
receiver
if the vehicle had that so now we've got
what we need so why do we want these
codes well we've got to find part
numbers to order the radios so I like to
use GM parts giant for this kind of
stuff but now knowing the options I can
see the different radial part numbers so
here's a US 8 radio 103 48 7 1 7 this
was the top top-of-the-line radio right
so we go back to our our POS we know us
was our top align mp3 player radio and
then if we want to see where our u n7
and u m7 radios are here is the UN
here's the UM seven here's un zero and
I'm looking UN zero here I'm sorry I
read it wrong u n zero that's what
that's what I was looking at
so we've mapped all three our POS u NC 0
u m7 and us eight to part numbers so now
if we take a look at the radio that came
out of the vehicle we can see that this
is a part number 103 3 5 2 2 3 now
sometimes you'll find these numbers
don't match up to what's over here so I
know that this is the mid-level radio
because it has a CD player and they're
showing a 103 4 6 3 1 6 this is a
superseded number this is original
number that went into the radio was put
in there back in April of 2004 when it
was manufactured by Delco electronics
and so this radio number has just been
super superseded rather you now know
that this number and this number are
compatible with this vehicle there may
even been numbers in between the people
that sell these radios if you buy them
from somebody that does it as a business
they'll have a lot of the familiarity on
the right radio for you but the
important thing is to get the one that
matches let's take a look at the radio I
picked do the upgrade this is the
top-end mp3 type radio and this one has
a part number of 103 four eight seven
one seven and that's exactly what we see
on the screen so in the case the
top-line radio this one has never never
changed the manufacturing data on this
is September Sumi July 19th of 2004 so
it could have either been a late
production Oh for radio or an early
production 2005 radio but the point is
it's a supported radio and again so why
do we go through this these are the only
radios you can put in this vehicle if
you pick a radio from a Buick
if you pick a radio from a Cadillac even
if it fits
you will not be able to unlock it with a
tech - because the tech - is only going
to have the programming to deal with the
radios that came with the vehicle
brand-new the only way you'll luck out
is when you have a situation like this
where there's more than one partner
we're used for the same damn radio and
GM might have changed that part number
because maybe they changed some kind of
chips inside of it maybe they changed
the bracket maybe they changed something
with the supplier of the faceplate
something triggered a different number
for Delphi Delco electronics to change a
new number but it ends up being the same
and the tech tool will be able to handle
it and program it so anyway what we're
gonna do now is I'm gonna put this new
radio in we're gonna get the whole thing
put back together I'm not gonna show all
that because all you do is reverse what
we already showed and then we'll be
sitting on a situation where this radio
is gonna say it's locked and now we're
gonna show you how to unlock it so we'll
come back we're at that point right guys
we've got the radio installed we put all
the trim pieces back on like I said you
know I was gonna show that because you
guys could follow along just by
reversing what we did and when you turn
the radio on I was expecting to get a
you know a lock error but instead I'm
getting a calibration error so you can
get both types of problems sometimes
it'll say locked in this case it's
saying calibration error because it
didn't come up with what I expected I'm
going to show you both things that you
can do on the tech to to get around that
and before I get started let me tell you
also that third-party device that was in
there that is tied up to letting you
have an auxilary
in for your iPhone I mean basically what
that thing is it plugs in the back there
and then if you cycle through the band
but the radio on you know what will
happen is it'll give you an aux in so
it's pretty cool little device back from
the early 2000s but I decided just to
leave it in there because it was spliced
in I'm hoping it doesn't cause a problem
when we do this it seems to be a pretty
primitive device and I don't think it'll
have the same problem it's something
more sophisticated would if you had like
a third party Exim receiver you
definitely need to unhook that because
that would cause a problem all right so
let's fire up our tech - I'm going to
turn the key to the you know I'm not
going to start the engine but I'm going
to turn it to the
the run position so that we get our dash
lights and everything and I'm gonna
power up our tech too and hopefully we
don't have any glare here let me kind of
maybe turn it a little bit so it's got a
better orientation for you and we're
gonna go into Diagnostics this is a 2004
it's a passenger car it's a Chevrolet
this is a J model if you don't know how
to pick this on your vehicle I'll link
another video at the top it shows you
how to pick those codes and of course
it's cavalier and what I'm going to look
at first is if I had the lock what would
I do for that so I believe that's under
the body we don't have a digital radio
receiver but it thinks we do because we
have that thing plugged in that does the
aux in alright and then we would go down
to radio and we would go down to special
functions and we would go down to radio
setup and then we would have to pick
what kind of radio we have so remember I
showed you guys how we pick the rpoS
that's one of the other reasons why we
did this so this is a u.s. eight radio
so we're gonna pick that it's United
States it's doing a test of the radio
it's making sure that it can talk to it
this is basically the body control
module communicating with the radios
module inside of it
just let it shuttle no long we're not
programming anything yet we're just
running a set up test okay the test is
successful that's great that means that
that aux-in thing isn't causing us any
problems and the BCM can talk to the
radio just fine
so now I'm gonna exit out of this so now
the radio is set up now that doesn't
necessarily clear the error or that
doesn't necessarily get rid of the
problem but it's something that we
should do when we're coming in to do
something like this so now how would I
calibrate it so I'm gonna go all the way
back to the top and I'm gonna go into
the service programming system and I got
I got a another video on this in general
also if I can link that up here at the
top too because I'm not gonna spend as
much time on what this is base is gonna
go into this I'm going to request
information from the body control module
to read in from it and at the same time
that'll pull up the information about
the radio so it's a Chevrolet it's a
2004 it's a passenger car it's a
cavalier
it's gasoline-powered we don't have the
ignition on batteries in good shape
we're not programming anything yet so we
don't have to worry about putting any
kind of auxiliary power on the battery
it's gonna read our VIN and it gray that
out but I'm going to tell it this yes
alright so now we're gonna do it says
right we're gonna disconnect this we've
downloaded all this information and it's
in the tech two and now we're going to
go over to our tech line terminal which
is basically a PC running the tis 2000
software and we're going to see if we
got a new calibration for this radio so
let's pick it up okay guys we're in the
tech the tech twos test 2000 screens and
on this old windows of PC that I use for
that purpose and we can see there's no
newer calibration than the one that's
currently installed here this is this is
too old of a vehicle to have separate
calibrations for the radio it's just
basically one thing for
everything and that's what he'd uses to
talk with let me just get rid of this
antivirus pop up that spring up here so
we're gonna go to the next screen it's
gonna basically tell us we've already
got this so it's basically telling us
look you know you already have this
calibration you can't update it but by
going through the procedure we just went
through and figuring out that it's the
same I believe it's gonna be enough to
get the radio happy with it so we're
gonna try that so at this point we're
gonna go back in the vehicle and we're
gonna complete the process and see if
that triggers that the radio to figure
out that I get it I know what I'm
supposed to be doing so we're gonna go
back to the car now okay we're gonna go
back into the SPS system and we we know
that there's no newer calibration
because we requested this information
already and we went over to the PC and
it told it that there's no new
calibration you can apply so we don't
need to request this again we just need
to go into this step if we did have a
newer calibration you guys can watch the
video i linked earlier and you can see
how that would be applied to to the body
control module the engine control module
whichever ones needed to be updated so
we don't have it so we're done at this
point so i'm going to exit out and i
think at this stage if i power off my
tech two and i think if i killed the
radio here and i think if i start the
engine now i should not have that
calibration error and i don't
all right so that fixed that problem and
then I still have this third party this
third party guy I'm gonna still make
sure he still works if I pick him he
still says aux-in all right so
everything looks like it's working now
so running that set up and going through
the process of a calibration update and
figuring out that there was not was
enough to get that calibration error
cleared if this had said it was locked
we would have been able to then use the
same process to unlock the radio by
applying a new program which GM calls a
calibration that would have cleared the
lock message as well so the same process
I showed you for the Cal air would apply
to the lock message that's only for
these RDS radios that are shown in a
Cavalier but it'd be the same as Sunfire
it'd be the same in anything from
probably 2000 to 2005 if the radio looks
like this the form factor the shape and
the size it's probably the same
procedure some vehicles have an unlock
feature built into the tech Tuesday
this one does not so this is the process
you would use with this type of radio
and this is just another way you can do
this without opening up the radio and
trying to lift off the EPROM ship you'll
see some videos about how to butcher the
circuit board and either pull off a leg
up or remove that ship all together this
is the way you're supposed to do it the
way GM intended to do it and if you have
the equipment or have access to the
equipment this video is to show you how
so I hope this helped you out and have a
clear calibration error how to set up a
new radio how to pick the right one
that's compatible and have a smooth
upgrade and get the whole process done
in a half hour so I think we've been out
here just working on this for maybe 25
30 minutes if we didn't have the filming
we would have you know spent even less
the hardest part is getting all this
stuff off so you can get at this guy
anyway if you if you have questions
leave them in the comments I'll try to
help please like and subscribe otherwise
thanks for watching