2006CLK

It is pretty common to see a malfunctioning command display due to damaged ribbon cable. Anyone knows where to buy a replacement command unit display ribbon cable for W209 2006 CLK 350? Or a display with the ribbon cable attached? It seems like the web is full of replacement speedometer center display but nothing on navigation/stereo. That is pretty weird. I would hate to dump a perfectly good unit just because I cannot find a simple cable to replace.