You can get a stereo with a remote and attach it to your steering wheel.
There was someone that got at least partway through hooking up the steering wheel paddle shifters in an SLK.
The answer to your question is I do not know anyone that has done it. Can you do it? Sure you will need a new steering wheel, head unit, and run custom wiring. Probably looking to pay at least ~$1400 for steering wheel and HU parts alone. If you got the money anything is possible.
