Contour Enthusiasts Group Archives Forums Modifications Audio Is splicing an amp power wire to battery acceptable?

My engine's wiring harness was recently replaced. In the process, the dealership so fit to cut my amp's power wire to the battery short. Took me a while to figure out why I wasn't getting any sound. Anyway, I'm going back to the dealer to demand they fix it. Question: Should I insist on them running a new power wire or is splicing in to the old one and hooking it back up to the battery acceptable? Thanks guys. I know how to turn my radio on and that's about it. So your help is greatly appreciated.