I don't have the exact part number for the "F" RNS-E but I wouldn't bother trying to retrofit the CD changer. The changer, glovebox and harness costs you probably about $700-$900, just to get 6 CDs. You can get about 4 2GB SD cards for the same money, incl. USB reader, each with more than 6 CDs ripped at very high quality. Plus you get artist and song title from SD but not CD. If you really have the need to play an audio CD, just use the DVD drive to listen to it. If you like it while you get home, rip it to SD and put the Navi DVD back in. Just my 2 cents...