Radio audio distortion

[pambs Junior Member Find all posts View Profile Close pambs]

hi guys,
when i turn on my radio a get something sounding like a distortion and when i push the gas it gets more loud. i have a top of the range pioneer head unit and a rockford amp. anyone suggest what might be the problem?

[Guest Close Guest]

Re: weird noice

Sounds like alternator whine. Was the headunit recently installed? It could be due to an earthing problem from the installation.

[VL400 Member Find all posts View Profile Close VL400]

Re: Radio audio distortion

If the power cables and the RCA leads for amp are run close to each other this can cause a problem similar to what you have, it often makes it sound like you have a supercharger whine.

[Goldmember Lurker Find all posts View Profile Close Goldmember]

Re: Radio audio distortion

Hi there,

this could be an earthing issue, I never use the stock earth on head units. They often induse noise, and they are usually thin and long. Also if your head unit uses more power than the stock unit the earth should be bypassed, for something thicker and solidly earthed.

Kind regards

Rich

[LeighW Avid PP Poster! Find all posts View Profile Close LeighW]

Re: Radio audio distortion

Firstly narrow it down a bit, is the noise there when the engine and all accessories ie
inverter, fridge etc are unplugged?

What does the distortion sound like, is it static ie a tick tick sound, a whine or distorted sound?

When you say it gets worse with throttle do you mean it speeds up or just gets louder?

If it has a cd does it do it with a cd playing?

Has it always been there or just started?

Cheers

LeighW