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I installed my stereo in my 95 SC300 this past weekend, and everything is going just fine. Except for 1 thing....there is some sort of high pitched hum that will fluctuate higher or lower with the rpms of the motor. The sound is only in one of the rear speakers, I am wondering if it is possibly a bad connection to the amp. I have no idea what could be causing this. Any ideas? Any advice and ideas are greatly appreciated.
yes! check your grounds.
you have a GLI Ground Loop Interference, check your ground on both your radio and your amps. I had the same exact problem...i grounded to what i thought was a good source but unfortunately i was wrong.....now my system is killer!
~R
for me it was the deck.....
but if your speakers are hooked up through amps and just one speaker is having that problem im guessing its the amp in your case...make sure you are grounded to a clean ground....no rust or pant....and you should be golden.