ok so i was installing an aftermarket amp into my 2010 express van and i decided to run my 12+ from the fuse box under the driver seat> i was messing around with some wires and the power wire arked a time or two!! since then no sound has came out the speakers. i currently have tried it with the aftermarket speakers and amp not connected and still nothing. ive had no luck with fuses or rewiring it all back to factory?? this is all the factory radio giving me thius problem?? it comes on ??what should i do