We added a new stereo to the van last week. We ditched the MB stereo and sucky Becker GPS and added a really nice Kenwood unit. Since Apple now allows other mapping apps to run through Apple CarPlay we went with a NON-GPS Kenwood.
We purchased the stereo, the install kit, and the steering wheel integration adapter from Crutchfield. The unit and accessories all came on time and they even included instructions on how to install the headunit as well as how to disassemble the dash and doors when replacing speakers. (Priceless)