Camaro Stock Headunit Mp3

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H o w y o u c a n ad d a n a u x i n p u t / m p 3 p l a y e r w i t h o u t a n a d ap t e r

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04-02-2007, 07:28 PM #1

Jason NovakOn The Tree1998 Chevrolet CamaroTrader Rating: 0Join Date: Jan 2003Location: Rice Lake, WIPosts: 173

How you can add an aux i npu t / mp3 p laye r w i th ou t an adap te r

I've finally decided to switch my 98 Camaro CD unit out for an aftermarket HU, and now I'd like to move it into my Grand Am.

Since I don't have to worry about killing it now, I've decided to take it part and try to add an aux input (which isn't even

possible with adapters in a 98). I've done something similar to an old head unit before, here's what I've found so far.

The amp seems to be on the main board board, so there isn't an easy way to tap in there li ke there was on my old head unit.

No easy route from the radio, either. However, the CD player is a self-contained unit with a ribbon cable, so audio must be

passing over it.

Here's a picture of the bottom of the CD player, with the CD connector circled:

Now, here's a closeup of the connector. I tapped in a couple of leads to a set of powered speakers to locate the wires carrying

sound. I've labeled the left and right channels. It appears that some later models may have a connector with more pins, but

the 1st and 3rd pins are still correct. Use the metal stereo chassis as a ground.

How you can add an aux input/mp3 player without an adapter - LS1TECH http://ls1tech.com/forums/stereo-electronics/688297-how-you-can-add-aux-input-mp3-player-wi...

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So it's just a simple matter of splicing into those three wires with a special jack. This will allow the CD audio to pass through

the jack fine when nothing is plugged in. When you plug in a cable into it from your MP3 player or whatever, it physically

disconnects the audio to the CD player, and instead passes along the signal from your cable. You will need to have your CDplayer playing for this to work, even though it's using audio from your MP3 player. I know some of the aftermarket adapters

that plug in between the HU and the cd changer work the same way, the changer plays, but it replaces the audio.

A quick search of radio shack.com returns the 274-246 for $2.99

jack

However, unlike the old HU I modified, I don't think you can easily put a jack into the face of this head unit, since there is a

circuit board running behind plate. You can't just drill a hole and stick it through. See here:

So I think the solution would be to run a 6ft+ wire through the back of the HU with a jack at the end you could run into glove

box or into the console. The panel mount jack from radio shack isn't really the best for that, but it would work. I'm sure one

of the big online electronics suppliers have something better.

So for a couple of bucks and fairly basic electronics knowledge, splicing into three wires, you should be able to an an

aux-input to any 98+ camaro HU.

What do you guys think?

__________________

1998 Camaro Z28

Red A4, T-Tops, 3.23, Fully Loaded, 24,000GVW B&M Transmission Cooler, Midwest 3600 2.5STR Torque Convertor, SLP

Airlid, SLP Loudmouth Exhaust with Dynomax Bullet, BMR Boxed Subframes, BMR LCA Brackets, DMS Springs, Bilstein HD

Shocks, JL Audio Stealthbox, Firebird Power Antennahttp://www.jason-novak.com

Last edited by Jason Novak; 01-05-2008 at 02:12 AM..

04-06-2007, 10:59 PM #2

fredmr39TECH FanaticGarage is empty, add now

Trader Rating: 0Join Date: Oct 2006Location:Champaign/Chicagoland

Jason - post your results from CamaroZ28.com here as well! I know many here will appreciate it immensely.__________________

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04-14-2007, 07:56 PM #3

Tom99SSTECH ApprenticeGarage is empty, add now

Trader Rating: 2Join Date: Nov 2001Location: IL

Posts: 324

Well I followed the instructions from the other website you posted on and it worked great. Bought the Radio Shack 274-246

and a cable for my iPod. Total cost was roughly $8. The only thing is you have to have a CD in the radio first then plug in the

iPod. Once the iPod is connected you control it as normal and it plays through the radio. Alot better then FM modulators, nice

clean sound. I located the 274-246 jack in the panel next to the convertible top switch (did not want to screw up the radio if I

messed up by trying to put it there).

Not having a HU that was able to control a CD Changer this is a great option. And for the price you cannot go wrong.

Last edited by Tom99SS; 04- 14-2007 at 08:04 PM..

04-14-2007, 08:33 PM #4


Glad to hear it's working well for you It's probably best to mount the jack remotely. Not a lot of room in the face plate,

and it would be easy to mess up and pretty hard to fix. Saves a lot of time, too.

I'll update this thread with all the instructions

__________________

1998 Camaro Z28Red A4, T-Tops, 3.23, Fully Loaded, 24,000GVW B&M Transmission Cooler, Midwest 3600 2.5STR Torque Convertor, SLP


Shocks, JL Audio Stealthbox, Firebird Power Antenna

http://www.jason-novak.com

04-14-2007, 09:05 PM #5


Ok, I've completed this project and it works great. Although I put the jack directly into the faceplate, I'd recommend against it

since it's hard to find space to install it that can be used once the stereo is installed.

The switch is radio shack part #274-246 for $2.99 link

I recommend using a piece of networking/cat5 for the wiring. I had planned to have use solid colors as circuit board

connections, but switched two when I was soldering so you may want to ignore the colors. Here's a picture of the jack

soldered up

Here are the details on the connections:

Pin 1 - Ground - connect to the stereo chassis

Pin 2 - Left Channel - wire from CD connector on main circuit boardPin 3 - Left Channel - wire coming from CD player module

Pin 4 - Right Channel - wire coming from CD player module

Pin 5 - Right Channel - wire from CD connector on main circuit board

Here is the jack wired into the CD connector. Note my wires run into the face, you'll probably drill a hole in the back of the

case and run the wire out there.

Soldered everything and taped it.


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__________________

1998 Camaro Z28

Red A4, T-Tops, 3.23, Fully Loaded, 24,000GVW B&M Transmission Cooler, Midwest 3600 2.5STR Torque Convertor, SLP




Last edited by Jason Novak; 01-05-2008 at 02:12 AM..

04-14-2007, 09:28 PM #6

pentavolvoTECH FanaticGarage is empty, add nowTrader Rating: 0Join Date: Nov 2006Posts: 1,257

great writeup

04-29-2007, 08:00 PM #7

z28man2005Teching InGarage is empty, add nowTrader Rating: 0Join Date: Sep 2005Posts: 12

This is a really great post. I have a question. Right now, my HU doesn't play CDs if it is real cold and humid. It isn't affected

when it's hot and humid. So, I get the Err message during these conditions. In your opinion will this mod not work when I am

having that trouble?

04-30-2007, 01:03 AM #8

Jason NovakOn The Tree1998 Chevrolet CamaroTrader Rating: 0Join Date: Jan 2003

Location: Rice Lake, WIPosts: 173

I'd say if it gets the ERR code then it probably won't be able to pass through the audio.

__________________

1998 Camaro Z28

Red A4, T-Tops, 3.23, Fully Loaded, 24,000GVW B&M Transmission Cooler, Midwest 3600 2.5STR Torque Convertor, SLPAirlid, SLP Loudmouth Exhaust with Dynomax Bullet, BMR Boxed Subframes, BMR LCA Brackets, DMS Springs, Bilstein HD



04-30-2007, 10:30 AM #9

pentavolvoTECH FanaticGarage is empty, add nowTrader Rating: 0Join Date: Nov 2006Posts: 1,257

i wonder if all you have to do is send a signal down one of those wires to make it think the cd player is working, i just dontknow

04-30-2007, 04:30 PM #10

thingthatgoesLaunching!Garage is empty, add now

Trader Rating: 1Join Date: Sep 2005Location: new yorkPosts: 265

Great writeup, I think I'm about to do this. I vote to "sticky". This is great stuff.

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04-30-2007, 07:03 PM #11


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