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Discussion Starter · #1 ·
I pulled a stupid. I wired a aftermarket head unit directly into the stock harness. I have everything hooked up correctly. I’m running ignition wire off of the wiper fuse, works perfectly. The only wire I can’t find a spot for is the dark green GMLAN low speed data wire. The head unit turns on, but no speakers. I know the GMLAN wire isn’t supposed to carry a electrical current, but I’ve read that the data stream without any data from the HU can cause the speakers not to turn on. Anyone have a fix? I have a 2007 cobalt ls 5 speed
 

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Once you have hosed your system is no time to ask how to unHOSE your system..
Ask for help / info before you trash your system and cry why didn’t someone tell me I might break more.
 
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