100td, i have one under the bonnet (hood) on the right-hand side near the air cleaner assembly. I had a quick look last night under the dash near the steering column but couldnt see anything obvious....apart from sh!tloads of wires...damn these modern cars!!
My monaro
http://www.loved.com/images/monaro.jpg was much easier to work on!!!
If i find anything, i shall pull out the camera and start snapping
The price is $255 AUD from the Aussie distributors
http://www.motorscan.com.au/ and the site shows what you get with it
cheers
peter
Edit: forgot to anser the question about price etc...oops