Dealership. They make it work with your vehicle. I transferred my 8.4 to my new Jeep and some features don’t work. I need a new code for that one too
On acc? Or off completely? Why would it turn off on its own? I’ll try it. Thanks. Also is the ground to the battery negative? Said you can do that or to the body. I’ve never grounded anything to the battery but i did with this.