Help!, just installed a new amp in my 1972 SS. Using the horn relay stud behind brake booster. it has a 20 amp fuse inline to stereo amplifier. Is this ok to pull that many amps from the horn relay connection? I dropped it down to a 10 amps fuse and cranked it up and the fuse blew. I guess that's why it came with a 20 amp fuse. Will the fusable links be OK that is hooked to the Horn relay post? Do not want to damage the factory harness. Any help would be greatly appreciated!!!