Ok I don't know if anyone had experience this problem before, but since I bought my car my radio is making this annoying noise in most of the radio stations, in some of them is more noticable but is always soooo annoying.

If anyone had the same problem before please let me know how to fix it. I'm using a pioneer cd player head-unit (I think it's a 3700 4x45w) if this has to do anything with the problem.

 

check your antenna jack going into the back of your stereo if its not in all the way u will get interferance.

 

If this is an engine speed dependant whine (varies with engine speed) check the antenna connection AND your ground.

 

Ok the problem only happens when the engine operate's. What is the color of the antenna connection and where is the ground?

 

not, sure what color but... when you look at your antenna jack from the back of your cd player the outer connector is the ground and the middle prong/connector is the signal. Antenna's have this ground sorrounding connector the signal line to shunt any noises, spikes, etc into the ground, but in your case.. it's not doing it's job

one thing you could prolly do is to isolate the ground of the antenna... this is usually done by using a ground isolator device or by using a capacitor. Also, its doesn't hurt to check if you have good grounding points fro your receiver and the antenna

hopefully that will solve the problem... good luck man

 

^ Where I can find that device?

 

Update: I really need help on this. Read my last post ^.