Join Date: Dec 2001
Location: Los Angeles, CA
To the best of my knowledge, an OEM Nav retrofit has never been done successfully. I believe that the general consensus is that it is so difficult and costly that it is not feasible (or practical if you prefer).
I believe that you will find that the advice is:
(1) Buy an aftermarket Nav unit (Garmin, etc.)
(2) Get rid of (trade, sell) the non-Nav MDX and buy one with Nav.
White 2002 Touring/Navi -- 12/29/2001 -- Rear splash guards, BSM, whl locks, moonroof visor, fs spare, burl shift knob, cargo net/cover/liner, separation net for our 2 dogs.