Now that the 2004 E500 is adequately old, I wonder if we have affordable Navigation mods available. Last time I checked with someone and they quoted $2000 for the mod. Since I am a DIY guy, I wonder if anyone has info on all the parts required to do the job. It's got to be pluggable modules (unlike the dealers make you believe).

 

Please do a search re this...there are several posts on how to install nav on the W211