Have anyone put a double-din Nav Sys. in a late model 300, if sowhat problem you had to over come.
I would like to put one in my 300, the cost for a nav,sati, HD, and handsfree, is about $1300. A lot less than a factory unit.

 

I dno about alot less, but you can get used OEM Nav units for about $1000 if not less. I mean I got mine for $900 and that was 2 years ago.