Try your search in Electrical. It involves an override switch. Use my member number on the search and you'll get the threads I've posted in about my own switch, but there are others that I've not posted in I'm sure.
Thanks, that sounds pretty simple. While my brother was getting his system installed for $180, I told them to fix the ant and they said "there is no way to do that". I knew he just didn't know how. BE HONEST DUDE!
Don't feel like pullin' the radio back out? Trace the green wire back from under the hood at the antenna, it runs behind the right kick panel before going over to the radio. Installed my "cancel" switch inside the slot to the left of the steering wheel.