Hey, do you mind telling me what it ended been? I am having the same check engine light, as you . I also got an audio system installed, but i started removing everything so see if i can find the source, but still nothing. I used carly am getting
U0079
Control module
Communication Bus
"G" off
I didn't have any battery drainage though, just a check engine light, when ever
I clear it, it comes right back on again after I restart the car. My car is due for state emissions inspections, so I need to get this fix fast, I NEED HELP
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