2017 GMC Sierra 1500 SLE. Just installed a new setup new wires amp and sub. Immediately blew the fuse. Checked power wire to ground seems good. Only blows if both power and ground are hooked up to amp, otherwise it doesn't blow. Tried to ground it better. Still blew. Removed all speaker rca and remote wires off amp to eliminate shorts. Still blew. Thought amp was bad bought a new one. Still blew. Remote wire has 12v all the time so thought maybe it was starting under a load removed remote wire again to verify. Still blew. Anyway I'm very confused feel like there's something obvious that I'm missing please help!