I found a manual via Google on how to remove the radio which is 95% of the task. The hardest part was removing the Change Tray which had a particularly stubborn clip. It really felt like I was going to break it. The next hardest part was prying the central AC vents out. This was difficult because I didn't have the appropriate tools. I ended up using to hotel key cards and a tiny screw driver. The connecting clip is in the bottom left corner. Once you get it far enough out, you can pull the rest out with your hands. No mars on my dash thank you.
The Navi in the center of the dash also controls the primary functions of the car like AC/Heat/Radio/XM, and 6xcd changer/player. This took a bit of wiggling to get out. All of these components are held in with spring clips. Some of the spring clips sprung off during extraction and I had to hunt them down with a stick magnet and pop them back on.
Because my car had an after market DVD player and two headrest consoles installed, it had a bunch of extra wiring as well as a video distribution box and an FM modulator (yuk!). Actually, the FM modulator works quite well for movies.. but not good enough for music.
This is my OEM Navi console. Quite a heavy box and lots of stuff. My goals are to figure out what kind of screen it has and how touchscreen inputs are read.
6 CD changer comes off in a big chunk.
I sent an email to SHARP asking about the touchscreen inputs and full specs of the video screen and they said that I have to talk to Honda because this model was made custom to their specs. I sent emails to Honda and received the run-around; no one knows about this or who to talk to about it. The Honda Service manual doesn't go into this detail. I found others on Google that were stuck where I was and.. we're still stuck.
Most of the knowledge for this task came from the wise folks over at mp3car.com and most specifically from this post: http://www.mp3car.com/vbulletin/show-off-your-project/95276-2006-acura-tl-oem-navi-touchscreen-integration.html
Video is working!!