ww2012

Ok, finally figured out the problem here.  The dang e-brake switch was broken!  Replaced and... the greyed-out buttons are gone.  thanks for the help!

Ok, you're correct about the status messages.  It indeed states it is not receiving a parking brake on signal.  I have done the "hack" repositioning the mute wire and then grounding it with the green wire... no worky still 

I am scratching my head here.

Thanks so far.

Yeah It did work in the car.  The original AVIC-D3 installed in the car - had a malfunctioning DVD player, mechanism broken, navi system would not work.  I know before the DVD system broke, all those buttons were working OK

I bought a working used D3 unit.  I unplugged all from the old unit, installed the "new" unit (basically took 15 mins).  Everything is working expect the navi buttons are all greyed out, cant input an address, etc..

I am trying to figure out why my navi buttons are all greyed out.  I'm stopped, parking brake pulled....