Hey guys, i have a 2012 A4 1.8T. has sunroof, push to start button, ect. Purchased the car used. I've never got the sunroof to open properly nor i ever got the car to start using the push button function. I did some research and changed the backdoor antenna didn't help. now i've managed to get and replace the Comfort control Module . Now my question is, does the module need re-coding to allow the car to start and function ? or is it a plug and play part?