hey guys, i just installed a pioneer DEH-1650 head unit and a set of pioneer 6x9's in the parcel shelf using spacers. this was the same combo i had in my old car and it never gave me any problems, but now, when i put the volume above 9-10 it starts crackling like mad. it doesn't seem to be associated to anything inparticular (cd, radio, bass, treble etc) except for increase in volume
any help would be great, i'm going to try and sort it out tomorrow...