I have an Oldsmobile Aurora, with a Alpine 9855 HU. I have a bit of an alt. whine problem and was wondering where the best spot would be to ground the HU? The thing is that, I tried grounding it to a large metal brace for the factory radio that ties into the dash/firewall and the Alpine wouldn't turn on. I then connected it to the "-" wire in the OEM radio harness and it worked and I left it.
I have no idea where the '-' wire runs. Should I make a new grounding spot on the metal floor (paint removed, etc) or is using OEM the best?
Sweet, thanks, gonna play with it tomm. I have a bunch of 14ga speaker wire, I'll just split and use. Is there any harm with running the ground with the main power wire down the right side of the car? My battery is located under the rear seat in my car.
Thanks for the help. I redid all of my grounds, HU, active crossover, speaker and sub amps, all to a distr. block, then to the battery, then all directly to the battery with no avail.
The found the source of the noise was my crossover, Clarion MCD-360. Dunno why. Plugged the same input RCAs in my speaker amp and no whine at all. I'm still using it to for my subs. It's was a bit redundant for the speakers anyway with the features of the 9855.