Why go to all this trouble of the car alarm when you can just have a relay plug in to your amp turn-on lead from the empeg ... the relay will receive a signal from the turn on lead to pass full voltage from elsewhere into your WAP11 ... now whenever your empeg is on, so is the wireless ... once the empeg turns off, so does your wireless. Now all you need to do is extend the delay of your empeg poweroff.

Greg