YOU MIGHT WANT TO REGROUND THE HEADUNIT AND MAKE SURE ALL OTHER GROUNDS ARE SECURE ALSO MAKE SURE THE PATCH CORDS ARE NOT RUN BESIDE POWER WIRE THIS CAN CAUSE ENGINE NOISE BUT MOST LIKELY ITS GONNA BE YOUR GROUND ON YOUR HEAD UNIT SINCE YOU HAVE THEM RUN DIRECTLY OFF IT AND NOT RUN THROUGH AN AMP (RIGHT?)

AND YES SOME ONE DOES MAKE A NOISE FILTER BUT IT MAY NOT BE NECESSARY

WAS THIS STUFF PROFESSIONALLY INSTALLED?

1995 Suburban two tone black and silver paint full black and white leopard interior 20" spoke wheels bagged fbss runnin nitrogen 2 kicker comp vr 12 1996 Contour Vtech ATX 1998.5 Silver Frost SEVT RIP(5-18-03)