Recieved my Radio Kit for my ST S last week and took the plunge to install it. Said on the instructions that it would take an hour. Well....lets say I was being really careful and took me the better part of an evening and the next morning. Probably would have been quicker if I could have found my metric wrenches. Any how....installation was relatively simple with the plug and play aspect of the radio module. Hardest thing to do was installing the plug in for the frunk to hook up your IPOD. I was able to get my hand in there without having to remove the trunk. I accidently hooked up the ground to the attenna as the instructions were not clear so AM did not work. But once I figured that out AM worked. Nice to have some music to listen to when on the road.