Tonyp is correct, only way to know for sure is to check for plugs. However, the majority of cars built pre oct 2004 have plug and play. After that, you need to wire in. I say the majority as even though my car was built sept 2004, I didn't have plug and play for mfsw nor for cruise control when I fitted them. Someone suggested some cars may have slipped through during the build changeover phase. Also it's important to rely upon your build date and not when your car was registered for these type of things.