How many are using this monitoring system?

Interesting but with my mirrors and the wife with a radio in hand, I don't see the need for it. Also it's going to cost some cash and a bunch of time to install. It could be wireless but wireless still need wires for power.

I followed the links until I got to the page that listed all of the retailers of this product. I tried 6 or 7 to find out the price and none of them listed this set-up in the search menu.
It looks pretty neat but it doesn't seem to cover any overhead obstacles like tree limbs roof overhangs, etc. Clicky

looks neat, my tacoma system covers 1/4 of that. :)
bumpy