i was wondering if someone could help me design or at least give suggest me the tune of the port and the size of the box for a 15" L7. . there will be a "sound off" here in el paso on the 23rd and well i was trying to see if i could the street class trophy :-D ..thnx in advance
^^ jsut like they said... try n check for a ground problem, sounds like you have a ground whine/loop. search for "ground loop fixes" threads here and some of the things there can help you out.