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Discussion Starter · #1 ·
I have a 2006 GMC Sierra denali. I replaced the head unit to a double din and used the proper Bose wiring harness. Shortly after. I began noticing issues with my truck like the heated seats only working for a short moment, gauge back lighting and ac control panel back lighting not working. I replaced the BCM and the headlight switch. And replacing the BCM fixed my heated seats issue(I think) but my gauge lights still do not work and periodically the ac gets stuck on blowing outside temp air, and blowing at the lowest fan setting. The display on the ac controller indicates that I am changing the fan speed and the temp but nothing happens. Does anyone have a clue as to what the hell is happening????
 
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