il cut a long story short!
Had a 600W sony xplod amp but it was too powerful for my 6x9s. I was at a car boot the other day picked up a 400w 4 channel alpine amp, bloke said he hadnt used it in a while but worked ok last time he used it.
Installed the amp works absolutly fine and sounds better than the old one BUT when i turn the engine ON there is a 'pipping' noise coming from the speakers, sorry dont know how to describe it better
The Audio and electric cables are running on opposite sides of the car but i just dont get why its fine when engine is off and not fine when i turn it on?!?!! Somebody help im going crazy
Cheers for any help!!!