car stereo call for help

[sovnar]

kmay. i have an mr2 with an aftermarket stereo that has developed an awful whine. if anyone is an electronics/strereo god, i would love to pay for your time to come and take a look at it, if anyone is interested, gimme a call. 560-0872

[Chopstix]

make sure your power and RCA's dont run together also check if your power runs next to any speaker wire.

[djrocketodd]

you can also get a ground loop isolator to hook up to the rcas, it'll probably take out the whine, as well if they are too long for the car (ie 6 meter ones) make sure they are not coiled,

[Fcuk]

sovar my MR2 makes the exact same whine.

It's like a low pitched scream that gets louder as you turn up the volume right? I am trying to look into getting this fixed also, if you have any luck please PM me.

[soupey]

i can probably give it a quick look after tuesday, pm me if ur interested, no need to pay me anything for the time if i cant figure it out tho, but i still have quite a bit of experience installing for friends, fam, and myself...so i can check it out for u...

[sovnar]

well im sittin in my car righ now. ive checked everything. moved my ground 3 times, all the power and ground wires are apart from the signals. ive re run power to the deck, and moved the power to the amp right to the battery. i have no more ideas. any more info is appreciated!

[KK07]

What kind of deck is it? It might even be the RCA outputs on the deck that are causing the problem. I know some Pioneers had this problem a few years ago. Are you able to try another deck and see if you still get the sound?

[sovnar]

the deck is a pioneer DEH-P6800MP, its less than a year old, and i bought it new. brand new apline type x RCA's i bought and put in when i thought they were causing the noise. the sound seems to be mostly related to power steering, because when i move the wheel, the pitch changes. also, i thought id mention that the power steering is electric, not belt-driven.

[rahim]

try grounding the metal sheild on one of the rca's

[alpineguy]

PM me if you have any trouble and i can give you a hand.

[sovnar]

iil try that in a minute...but i just accidentally blew my dome lights fuse, and the noise was almost completely stopped...until i put a new fuse in. no idea how that works...

[sovnar]

grounded the metal outer shield on the rear RCA's and the noise was SLIGHTLY reduced. i dont have enough hands to ground em all, and i called it a night anyways. iil be back out there again tommorow.

[Fcuk]

was just looking for some info around some sites and i got this so far, not sure if it will help.


Audio system: Several problems with the sound system including CD player that skips or fails to play due to lens distortion (1992), CD skips or displays "ERR" (1992-92), cassette tapes will not eject (1990), *whining noise from the speakers produced by alternator* (1991), sound cuts out in cold weather (1991).

[sovnar]

its an EHPS (Electro-Hydraulic Power Steering) whine, also common in the mr2 and usually very difficult to find.

[bennyhanna]

PM
wrxer1

He helped me!

[sovnar]

just tried a set of rca filters. did nothing....still banging my head into walls....if anyone has more ideas, let me know!