This CAN interface needs to be "hard wired" to the vehicle. The following outputs are provided (subject to vehicle application)

Amp turn-on
Speed pulse

The CAN331 can be used with the following vehicles

Chrysler
Jeep Wrangler

Following removal of the original radio the vehicles Amp will no longer operate. The CAN331 will provide the switch on signal for the amplifier. Thus making it possible to install an "aftermarket radio".