need help asap!!!!

so i finally got my new components installed and 4 channel wired up. have a really bad high pitched sound that keeps going (like the sound you get from power being too close to rca's.) i checked and my RCA's aren't anywhere near the power wires. its odd that it just started happening once the wires were fran from head unit to the amp. i tried some of those ground loop isolator's on the fronts, rears and sub RCA's but no luck. the only thing i found odd was that when my sub RCA's aren't hooked up i get maybe half the sound in my components. i've enver heard of this before my buddies been installing for about 8 years and has never ran into this before. he thinks it maybe something bad with the headunit or possibly wiring harness. i dunno since i've never had this problem until now.

anyone else have this trouble before or have other things to check

headunit-Pioneer AVIC-D3
RCA's- kicker (subwoofer) stinger stage 3 (4 channel)
power is ran on the driver's side and the rca's are all ran on the passenger side

lemme know if have any ideas; else i guess i'll have to re-wire components to run off head unit for saturday's comp

Check the outputs on the deck!! try a cheapy reg deck and those rca's.. If no high pitch then .. Its the Deck... Im a Pioneer Dealer and i hate to say they are notorieas for that.... Thats always the first thing i try and 95% of the time its the Deck

Are you running front and rear RCAs to the amp? If so unplug one set and leave only 2 channels hooked up. What brand head unit? I have seen this on Kenwoods quite a bit.

its on a pioneer. figures, cuz i can't afford a new one right now; especially an indash navi (plus i like the d3) and ionly had about 1.5 years. if it turns out to be my deck, is there anything i can do to fix it or anything like that?

yea running front and rears.

when i get used to get whine from my decks i would just ground an rca back to the deck. i dunno how it works with the navi screens and what not though. never had one

Did you unplug one set of RCAs? Did the whine go away?

Engine noise sucks to deal with but Jimbo is right it is the most difficult thing to deal with. Pioneer deck cost me a ring, it lost ground in rca's a poof poof poof. Try seperating power and ground on diff sides of car try better deck better rca's all just trial and error if you plug up new deck and it goes away guess what its the deck have fun be safe

hey goose I know you are having problems right now but are you still going to be at paulies show?

I can tell you how to test the D3 for bad RCA's. I may be able to fix it as well. Let me know.

hunterw wrote:

when i get used to get whine from my decks i would just ground an rca back to the deck. i dunno how it works with the navi screens and what not though. never had one

If it turns out to be the deck I would try this I've had it work also

Unplug each speaker output one at time from the amp, If the noise stops you have a cut wire grounding out. This will not always make a amp go into protect and cause radio noise

If you unplug while the radio is on you have a chance of blowing the safety circuit on a Pioneer head unit.

well got it all fixed. we grounded all 3 sets of RCA's.

Gabe Sanchez wrote:

If you unplug while the radio is on you have a chance of blowing the safety circuit on a Pioneer head unit.

THUS,,, the reason for the whine now... I see it on a daily basis and shake my head.


I was agreeing with Gabe bye the way, that is usually what happens when you do that..... Then they one day will go poof. especially grounding them unless Gabe told ya to do it.

you only needed one ground, they are all tied together.

I usually go on to say i just replace the radio. But its easy when ya got at least 30 pioneers in stock......... wooo hooo

haha yea; i dont feel like buying another doubledin navi; and not really a fan of the new ones anyways. (still wish i had my old premiere out of my old truck. i loved that thing)

yup the older ones in my opinion are better... Gabe will probly kill me for saying that but..... Him too i bet.

I have older ones for a reason, lol.