I just installed a trailer light harness made by Hoppy. It is a harness made for 85-91 Blazer and it connects to the brake light terminal harness. It has blown the fuses for the brake lights, turn signals and the dash lights. I tried fuses 5 amps more than the fuse block called for but they also blew. I have the harness grounded to the frame, which should be a good ground......has anyone else encountered this problem?? If so, any recommendations for a fix!