Ok so I found myself posting pics and info across three other threads about putting in my Kenwood 7100 NAV unit and modding the AC controls to fit the upper slot in the lower console. So thought I would consolidate into one set of info in hopes that it will provide another good set of info for others who want to do this.
And, a huge thanks to Icemann633, Newport996, Ritchie996 and others who have paved the way with these mods already and given me the inspiration / information to get me started.
Saturday:
Just installed the kenwood 7100 and did the AC mod today- about 4 hours.
A lot of careful grinding to get the AC control, pocket and trim to fit neatly.
Still
not finished, there is a slight lip on the lower pocket and need to make a more fitted trim ring for the kenwood (ugly gaps top / bottom).
That is on tomorrow's to-do list

.
Here's a pic of the mounted unit and new AC control location, plus shots of the NAV antenna install. Found a great spot for the NAV antenna!.
I chose to secure the cage for the kenwood with screws through either side of the cage into the console frame. This allowed me to set the height of the unit in the opening much easier, and it is very secure.
Closeup of right side screw point.
Some shots of the NAV antenna placement and running the cable. It is actually quite simple to do.
Toughest part was popping up the alarm indicator cover without damaging anything. It was very tough to take off, as you can see from the lower picture showing a slight bit of damage to my dash. fortunately this bo-bo is under the cover and out of sight. The cover pops up from the back (closest to you).
run cable down through opening for the alarm indicator
reach through the console opening and fish it through with your hand.
Carefully make a notch for the cable on the side plastic with a dremel, otherwise the alarm indicator wil not sit back down in the socket.
My antenna was magnetic so i just stuck it right on the metal (per the instructions with my unit). All done! Again, be careful with the hand tools around the dash (don't be like me...lol).
Overall, the kenwood made a
very nice improvement in sound (running through the bose factory amp...for now). I would say the bose sounds 2x as good as before. Next I will replace the amp and all of the speakers, probably next month.
OK on to day two and wrap up of the AC console mod and dash trim piece for the kenwood.