Dwayne and Mark-
I am glad the links to my 706 install made it here. I emailed you Dwayne with other info. as well. I changed my web page to explain that I had to add a pocket in the double-DIN opening when I replaced the factory stereo headunit. It happened to work out to my favor when it came time to install the 706.
I also have seen a CB mounted in the slide-out cup holder in the Tacoma and supposedly this works in the Tundra as well. I would say that any of these menu driven rigs need to sit up as close to your normal driving line of site as possible to minimize the risk of an accident.
Also, a quick plug for other Tundra owners. The website http://www.TundraSolutions.com
is an absolute must see.