• Stereo Issue
    8 replies, posted
I think this is the wiring harness, but here's what is happening... -The front speakers NEVER work in the morning anymore, and almost never work in the afternoon when leaving work, but sometimes they do. (Cooler in the AM, hot at 5PM) -Head unit either flickers on and off or is totally dead, or freezes at the last thing it displays, like the volume. Earlier, all it said was VOL 23 no matter what I pushed on the receiver. Car is a 2008 Chevy Cobalt LS. What the fuck is going on?
Sounds like a ground problem
[QUOTE=cNova;31552591]Sounds like a ground problem[/QUOTE]If it were a ground problem, it'd drain the battery and things wouldn't work at all.
What harness? GM13SR?? Those things are garbage.... replace the module almost assuredly.
[QUOTE=clutch2;31562547]What harness? GM13SR?? Those things are garbage.... replace the module almost assuredly.[/QUOTE]Wiring harness, obviously.
08 and up Cobalts need a special harness to retain blinker sounds, etc.... do you have have that harness? Certain ones will have a pass through for the front speakers, and then the module in the harness takes over when onstar/blinkers/chimes are in use and uses the front speakers to recreate said noises. If you have one of the harnesses that does this, then chances are the module's bad. The harness I use on the 08 Cobalts that comes through my shop is the GM13SR.. but that's not a pass through one, there's a built in speaker for recreating the signal noises/ etc on that one. However Metra and PAC also make appropriate data harnesses. Or did you use this one that doesn't integrate properly? [img]http://i.ebayimg.com/10/!B4piTng!Wk~$%28KGrHqV,!hsEyd!pp40RBMqo%29bklvQ~~_35.JPG[/img] If it's a passthrough module, good chance that it'swhat's causing issues on the front speakers.. and also there's a chance it's not giving it proper voltage (acc 12v is handled by the module as well.) If it's just the simple harness that doesn't retain chimes/ signal noises, etc... then it's getting power straight from where ever accy was tapped from.. if this is the case, where did you grab accy from? Pull some voltage measurements (12, accy, gnd) and see what you get. If everything is in line there's a decent chance the deck's toast. I've had a couple flicker and just give out on me.. no more output. Happens.
[QUOTE=clutch2;31590206]08 and up Cobalts need a special harness to retain blinker sounds, etc.... do you have have that harness? Certain ones will have a pass through for the front speakers, and then the module in the harness takes over when onstar/blinkers/chimes are in use and uses the front speakers to recreate said noises. If you have one of the harnesses that does this, then chances are the module's bad. The harness I use on the 08 Cobalts that comes through my shop is the GM13SR.. but that's not a pass through one, there's a built in speaker for recreating the signal noises/ etc on that one. However Metra and PAC also make appropriate data harnesses. Or did you use this one that doesn't integrate properly? [img]http://i.ebayimg.com/10/!B4piTng!Wk~$%28KGrHqV,!hsEyd!pp40RBMqo%29bklvQ~~_35.JPG[/img] If it's a passthrough module, good chance that it'swhat's causing issues on the front speakers.. and also there's a chance it's not giving it proper voltage (acc 12v is handled by the module as well.) If it's just the simple harness that doesn't retain chimes/ signal noises, etc... then it's getting power straight from where ever accy was tapped from.. if this is the case, where did you grab accy from? Pull some voltage measurements (12, accy, gnd) and see what you get. If everything is in line there's a decent chance the deck's toast. I've had a couple flicker and just give out on me.. no more output. Happens.[/QUOTE]Good to know. I don't know a whole lot about this, so I was going to take it to the dealer and make them fix it. It's all stock so it's probably not using what you showed in that pic. Aside from that, who knows. Probably harness I think. The blinker sounds come out of the front left speaker in most cars. If that speaker isn't working, no noises.
OoooOOO!!!! I thought it was an aftermarket in there.. lol . The blinker noise/ chimes/ etc module is the radio itself in your case, since it's stock. Most likely just a radio issue.
[QUOTE=clutch2;31607096]OoooOOO!!!! I thought it was an aftermarket in there.. lol . The blinker noise/ chimes/ etc module is the radio itself in your case, since it's stock. Most likely just a radio issue.[/QUOTE]Well it comes and goes. Sometimes hitting it fixes the issue with the LED shutting off.
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