i might be interested but i don't know what we are talking about? what are ground controls and what do they do and what are the benefits?
99'Contour SVT #1766 of 2760 stock-for now, mods in the making pionner deh-4400 cd/xm head unit pioneer 4x6 component plates(front) pioneer 3-way 6x9 (back) (2)8" Boston Accoustic Rally Series subwoofers Alpine 3527 amplifier MTX RT-XO1A electronic crossover