DieselSlug
Well-Known Member
Spent some time really trying to put together wiring diagrams for the audio system. Just really trying to understand its grounding system more than anything. Its so tough to find any decent wiring diagrams without some type of expensive subscription or a sweet set of original GM documents (not sure if they went digital in terms of OEM manuals by then). Looks like the radio circuit is different than the amp circuit per mitied diagrams I found. Not sure if the rear seat entertainment is different yet.
Messed with some temporary grounds without hacking any wiring and nothing seemed to rectify the whine. I tried pulling the antenna as well for a check and no change. Out of the bazillion posts, threads, etc. that I looked through 1 mentioned pulling the Rear Seat Entertainment plug from the module. I did this and would say most if not all the noise was gone while revving the engine! I am going to leave this unplugged for now and see what else this took out past the rear seat controls. I need to correlate the grounds between each of these systems.
Messed with some temporary grounds without hacking any wiring and nothing seemed to rectify the whine. I tried pulling the antenna as well for a check and no change. Out of the bazillion posts, threads, etc. that I looked through 1 mentioned pulling the Rear Seat Entertainment plug from the module. I did this and would say most if not all the noise was gone while revving the engine! I am going to leave this unplugged for now and see what else this took out past the rear seat controls. I need to correlate the grounds between each of these systems.