Theres a way to do it, if i remember correctly, you gotta go behind the unit and there will be a ground wire. If it's grounded you have to unground it and if it's not grounded you gotta ground it.
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Rafie
97 gtp loaded, 1.6" drop, cold air intake, magnaflow stainless exhaust, reflective package, blue neon interior package, 35% tint, hose sleeving engine kit, 12" pioneer sub's, kenwood amp 17" chromies ridin' on perilli pzero's