[02MiNeRaLgRaYGT]

for those of u who dont know i recently installed an aftermarket cd player and now my back speakers make a buzzing sound. all my connections are good, no wires are crossed. ive tried different ground locations and no luck. ive narrowed down the problem somewhat. i think its something to do with the amp ground. if i have everything connected on the little harness that goes to the two front speakers and the amp ground but i leave the amp ground on that unconnected and i touch the end of it it makes noise on the speakers so that makes me think that one is the problem but no matter how i try to ground it i havent had any luck. someone help me please lol

[02MiNeRaLgRaYGT]

and also if i unplug that little harness the noise goes away so it has to be something to do with that.

[gtredfire03]

What kinda of radio? Mach 460? Pioneer Deck? Are you using the Rca output on the Deck? I seen this with pioneer decks with getting feed back when I intergat with factory amps of getting feed back. You may just want to bypass the factory amps if you are have this problem. If you bypass then i remmoend you replacing the speackers too.

[02MiNeRaLgRaYGT]

yeah its a mach 460 but a sony deck. im not using the factory amps now and its not making the noise but it sounds a lot quieter without the amps

[gtredfire03]

o2 gt? im puzzled with out the amps your still getting the noise. Is the sony deck branded new? There may be something wrong with the build in amp on the sony deck. If the deck is new take it out and exchange. Try a new one. If you can not exchange it take to a location car audio shop and have them bench test the radio. There they should hook up power and a speaker to the deck to see if they get the same problem.

[02MiNeRaLgRaYGT]

no it doesnt do it when the amps arent hooked up. only when they are. i think for some reason i cant ground the amps well enough. if that makes sense.

[mikethetigerrr]

did u run the rcas for your amp on the same side of the cars as ur power wire?

[02MiNeRaLgRaYGT]

i didnt run rcas. i just hooked up the harness they gave me. i dont know where the power wire would be. theyre factory amps not aftermarket.

[Lefty10]

could it be engine interference? i kept getting engine interference in my back two speakers with the mach audio system when I installed a new amp. I got a ground-loop isolater, pulled the head unit out and installed that inbetween the rca to the head unit and amp. then i tucked it all back into the console there etc and no more noise through speakers. but i don't know if your problem is engine interference or not. but just thought i could throw this out there. if it is let me know...i got the engine interference noise problem down pat.