Ok so I just purchased a 2006 Mercedes CLK350. The car is not at the house yet but is on the way. We are looking at wanting to get GPS/NAV with XM radio and iPod integration and was wondering what the best option out there was for it. I just wish it would of came with it in the first place. Is the unit space a standard doubne DIN, it looks pretty large? Would a double DIN unit fit pretty easy? I want something installed but dont want to have to have someone get all crazy with an install when something may fit right in and be the best route to go. I was looking at theKenwood DNX5120. It is a double DIN unit. My wife of course is wanting something installed this weekend but I am wanting to wait and do a bit of research before taking the plung. Also would you recommend having Car Toys do the install? We are in the Denver area. Thanks