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So I put in a new sub, amp and head unit for my 01 SLE. I wired everything up and when I turn the key, the car says service theft system, the radio and amp are not receiving power. I plug the old radio back in and everything works fine, no more security lights. Im assuming it has something to do with the theftlock system? Please help!

Crisis averted. I read some other threads and had to wire the ignition wire on the harness into the IGN3 relay and everything powered up and no security issues