I have a 2013 E350 convertible. The radio controls on the right side of the steering wheel are showing signs of wear, i.e. peeling off, little air bubbles under the top layer etc. I am just wondering 2 things....Has anyone had any luck with these aftermarket "peel and stick" labels I see advertised online and/or how big a process is it to simply purchase a new control unit for each side of the steering wheel and replace the entire unit myself? Thanks

Switch block replacement, need to remove airbag rest is self explanatory if you want part #s provide VIN.