jayrebb 10+ year member
Member
Ok so i have limited info here because i didint install this HU, but i wanted to get some of you ideas... so this is what i got. 1991 bmw 325i, its got an alpine cdm-7857 in it, with stock 5.25 speakers font and back...so when i am skip to the next song, i can hear the HU working in the speakers, as if i can hear the motor moving the laser eye, then i can hear static at low volume levels...do you think a noise filter would help this? i thought it might be the stock speakers and wire, but then maybe not...any input would be appreciated...oh yeah its not alt. whine, it does what i explained above regardles of rpm levels...