Hi, I just put my amp and 6x9s in, wired it all up, works fantastically......until I start the engine! The speakers whine with the engine revs, and theres a low pitch buz when I turn the heaters on.....any ideas anyone???
Here is how its setup....
Power lead - direct to the battery (fused at battery end)
Earth lead - good earth (to the rear left light)
Amp - usual, 2 speakers, rca's etc
Head Unit - JVC with ipod adapter