It is possible using aftermarket parts. Check this thread on benzsport.com for more information.

You should be careful with something like this, you could ruin the electrical system, so it is advised to do so at your own risk.

http://208.56.186.103/benzsport/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=7&t=000019

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U