i gotta problem my legacy 4ch amp has been fine for months and now every now and then starts crackling and you can hear the alternator sound i.e. as you increase the revs it crackles more then all of a sudden itll stop and then come back music sound is fine and it does it when the h/u volume is on 0 as well i had a check of the wiring today and all seems fine, any ideas???
Dave