Hi,

I installed an after market screen (deck) to replace my stock radio and now I get a huge loud buzzing sound so many distortion...

What did I install wrong or what can I do to reduce noises coming out of my speaker?
One more thing, My aftermarket screen have no signal for AM/FM radio? Is there something I need to tune to the radio? Because I hooked up the antenna from the car to my head unit brain

thanks!

 

check your ground wire. is it touching any paint? if so, scrape off the paint and rebolt it down.