Rmchrger
Member
I use an LC2i. I have it spliced to the stock subwoofer speaker level inputs to turn it on. I also power the LC2i from the stock amp power. This LC2i turns on a 200amp relay mounted inline on the amp main power supply. When the factory system shuts off (about 120 seconds after the door is shut) it turns off the LC2i which then turns off the amp AND the 200amp relay that completely disconnects the aftermarket amp from the 12v system. I have mine amp getting its power from the 12v under the rear seat. Been flawless for over 2 years now.. Still on the stock 12v battery. No issues and never had a warning. Stock subwoofer still works just fine.