I found a kit on Walmart that claims to be compatible and doesn’t require a separate fob to start. Uses the regular fob by hitting lock 3 times. Was wondering if anybody had any success with it or even heard of it. Remote Start Kit
It probably works similar to the Fortin remote that’s pretty popular. Search the forums for Fortin and you’ll find some info. Without much more info I’m just guessing, but this remote starter most likely plugs inline between the start button and a few other harnesses under the steering wheel and dash. You then have to program it with your key fob so it can learn what the security pairing of them is and what the lock signal looks like so it can then emulate a key is present and start the car.