Im having a weird *** problem with my system its a 400w amp with 4 channels its a soundstorm force and the subs are 2 rockwood force 1's that are from like 1980 lol anyways i have everything hooked up with a brand new 500w wiring kit its grounded to the ****** tunnel in the EX cab and grounded well when i put the power wire on the amp it has a spark and blows the fuse when i hook it up and change the fuse it blows the fuse when i hook it up change the fuse and then put it on the battery it blows the fuse and im pissed lol help me asap if you can thanks!!