i wear no pants
so i just recently got a pioneer headunit from a friend, i had an alpine before and now i have massive engine noise, i know i wired everything correctly. i grounded both the ipod box and the headunit to the chassis and not the engine ground, i have all my amps grounded. even with the headunit off i get some pretty bad noise, but it is super loud with it on, it is absolutely annoying and prolly not good for my speakers. please help.