The black connector on the Naviks can connect to it but nothing happens. Guess its not supposed to work that way. So am lost.
By the way, I got a grom audio unit also. It works like a charm except for a few freezes when I try skipping quickly now and then. I also had to cut a mute wire on it. GROM helped.
Does that mean you really do need the NAV DVD? Or that I should try get the Vais tech SL2Vu. If I get the NAV DVD I'll still need a harness which seems difficult to track so I'm trying to figure an alternative
Read more: http://www.clublexus.com/forums/rx-1st-gen-1999-2003/706952-2001-rx-300-no-nav-cpu-video-input-nav-buttons-and-wiring-in-place-2.html#ixzz3tbOd4Rd2