There are a few sites around with this information, but I thought this would be a good place to put this. I also created this graphic to assist with my aftermarket head unit swap, which I'm attaching.
Also, here are some links I used for the swap:
http://www.benzworld.org/forums/r170...unit-swap.html http://www.slk32.com/pages/radioupgr...ioinstall.html http://www.benzworld.org/forums/r170...-question.html
Hope this helps someone!