What would cause weird noise to come threw speakers?

T

Tyler B

New member
what would cause weird whistleish type noises to come threw your cars stereo speakers? its not alternator whine. ive asked this question before and got no answer. ive got a 4-channal Eclipse amp, polk audio speakers, Jensen flip out monitor DVD player head unit, alpine mono block amp and alpine subs. but when i turned on the radio this loud annoying whistling noise with a mix of alternator whine came threw the speakers and it only does it when the car is started....that and over time (its kinda quit doing it) it goes away or wont do it at all. im thinking its the shitty head unit ive got. but im also hoping its just a bad ground/wires touching becouse ive just installed a overhead DVD player and dont want to have to get rid of my indash DVD player.
 
If you want to eliminate the nosie you hear when the car is running try to check if the ground wire leads all the way back to the back of your deck if it doesnt then in addition to your gound that is mounted some where to metal on your car add a ground back to the deck. if you cant find a gound wire on your deck attach it to some where metal on your deck. Usually that will cancel out some noise. If thats not it, try a noise filter. Sounds like you need a better ground from deck to amp or better connection between the metal of your car to your amp. It could even be that your deck is not grounded very good.
 
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