Hey Everyone

I just recently replaced my stereo system after my recent break in and I started to notice a high squeal from the radio. This noise works with my engine noise in acceleration and deceleration. I am thinking this is a power source bringing in unwanted engine noise. It's weird because this didn't happen before with my old stereo system and I am using the same 4 gauge power wire from the engine.

Any help with solving this problem would be greatly appreciated

Thanks

 

Which side do you have your Power Cables running on? Cause you want to keep them, on the opposite side of the alternator. (alternator on passenger side.. Cables on driverside.)

I took my door frame trim off, and ran them on the floor, by the door. There is enough room, tight tho.. to fit cables through..

 

Do like nexus said, but also keep your signal cables seperate from the power ones. Either run them thru the center console and under the carpet to the trunk or run them down the passengers side.

and check all of your grounding points, you may need to tighten one of them or pull it off (after disconnecting battery) and sand down to bare metal if that was not done, and reattach.

 

/ Yeah, what they said and if all els fails just get a ground loop isolator from Radio Shack and put it inline with your RCA plug going to the amp.

 

Running the power cables on the opposite side of the car from the alternator has positively nada to do with the price of empanada's in Argentina!!!!!

You run the power cable on the opposite side of the car from the RCA cables.

Like the other guys said, check your grounds as well. If you had your last system ripped out, they probably broke or partially broke a ground wire somewhere.Probably on the hu.

 

I got the same problem when i put in my XM.

 

be sure to put enough ground from your battery to the chassis
sometimes it helps to add another grounding point

never run the power cables alongside the signal cables... thats a big no-no

also, check the signal cables from your HU to your amp... it might have been twisted or bent or did pass along a major power line... if it does, then be sure to cross them perpendicularly

 

I checked with best buy today and they said the best way to solve the problem would be to install an inline filter for the amp. He said a lot of the problem comes with the amplification of the sound. The more power you have coming from the amp, the more amplified the sound will be. I am using a rockford fosgate compared to a sony running double the power so that might be the problem.

I am going to install a filter then see what happens.

 

That filter wouldn't happen to be a ground loop isolator like I suggested above, would it? If so you might want to check out Radio shack. They have them cheap as hell. I had to use on for the connection from my computer to my stereo system.

 

This is a prime example of why Best Buy does piss-poor installs!!!!! You don't use a freek'n ground loop isolator.That's just a big band-aid.The problem will still be there,plus the isolator will give you crappy sound quality.


It's not normal to have alternator whine in your system.If it was we all would have it. That idiot at Best Buy either doesn't know a damn thing about car audio, or he felt like screwing with you.Trust me, don't just take the easy way out.Take the time and actually figure out the cause of the whine.

If you want I'll take you thru the logical steps necessary to figure this out.I pretty much know the cause of it right now,anyway.