Don't forget that you will need to have a battery disconnect installed in your Edge. When I had mine installed, I had it configured so that the disconnect was powered by the charge line from the MH. The battery is disconnected as soon as I plug in the umbilical cable from the MH. I was going to go with the Invisibrake, but the dealer doing the install was unfamiliar with the installation so I wet with the Brake Buddy instead. Is not a huge hassle but not as convenient as the Invisibrake. At least i can switch it over to a different car if I want.