stereo wont turn on ??????
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
stereo wont turn on ??????
I have a 2006 Z06. It has a Alpine unit instead of the Bose. Sometimes, the unit will not come on, or may come on while driving down the road. I also have a stock Bose unit. It does the same thing. Evidently, I have a bad connection or wire harness or something. Anybody have any ideas? Or how do I figure out what the problem is? This is very intermittent. Also very annoying.
Tech Contributor
Joined: May 2003
Posts: 7,035
Likes: 134
From: North Augusta, SC
The fact that both oem and aftermarket radio are doing the same thing tells me you have an issue with one of three wires: power, ground, or class2 data.
When the radio comes back on, did it 'reset' and lose time/presets/equalizer settings between dead moments? If yes, the problem is power or ground wire. Schematics are HERE, but I'd start by replacing RDO/VICS fuse in the footwell and a good check/cleaning of G104 under the battery/fuse box area. THIS POST has a pic of where to find G104. -OR- if you can't troubleshoot the power issue, you can leave the Alpine installed and just run new power/ground wires to the interface harness (be sure to install a fuse on power line).
If radio isn't losing power, meaning it's just not being told to turn on by the BCM, then the problem is probably a bad connection with the serial data line. I'd try installing a jumper wire between pin A1 of the interface adapter (lines up with the orange wire at pin A1 of the big radio connector) and the purple wire at pin 2 of the OBD2 connector at the base of the steering column. That should get the BCM talking to the interface again, which will let the radio come on when the BCM says it should be.
When the radio comes back on, did it 'reset' and lose time/presets/equalizer settings between dead moments? If yes, the problem is power or ground wire. Schematics are HERE, but I'd start by replacing RDO/VICS fuse in the footwell and a good check/cleaning of G104 under the battery/fuse box area. THIS POST has a pic of where to find G104. -OR- if you can't troubleshoot the power issue, you can leave the Alpine installed and just run new power/ground wires to the interface harness (be sure to install a fuse on power line).
If radio isn't losing power, meaning it's just not being told to turn on by the BCM, then the problem is probably a bad connection with the serial data line. I'd try installing a jumper wire between pin A1 of the interface adapter (lines up with the orange wire at pin A1 of the big radio connector) and the purple wire at pin 2 of the OBD2 connector at the base of the steering column. That should get the BCM talking to the interface again, which will let the radio come on when the BCM says it should be.
