Most aftermarket units have a separate wire for remote turn on. I have not used the antenna wire to signal the amp on any of my Crossfire systems so I am not 100% on the answer to the question. It would not hurt anything to try.....

Your question about the power wire I can help with. See the thread below and link to the photo gallery at the end. This was actually my first post on this forum almost 4 years ago......


https://www.crossfireforum.org/forum...ower-wire.html