carbuff
Member
- Joined
- Oct 6, 2012
- Messages
- 184
- Reaction score
- 8
My 2001 v6 has an aftermarket jvc deck hooked up to the stock mach system with all the proper adapters and such. Its worked great for over a year. So out of the blue Im getting this loud moaning whine that varies in pitch with the engine rpm and varies in volume with the current draw on the alternator. Like if I hit the brakes it gets louder, turn on the headlights, etc. It seems to actually have nothing to do with the radio as it remains the same even if I turn down the volume to nothing. It also seems to only be coming through the mach sub speakers and not the upper tweeters. Could it be the alternator going bad? Mach amp on the way out? Sounds like some kind of bad ground situation. Also its intermittent. Sometimes its fine for a while but then kicks in the next day. Any ideas appreciated.