Tesla Roadser Mods
Tesla Tattler 2008 Roadster Install
From the index page, click on a photo to get a larger version with comments below the photo. I'm posting this to help other owners who may wish to attempt the same install, but it's a non-trivial task with some risk of breaking things you probably don't want to break. Proceed at your own risk. I assume no reposibility for the quality of my instructions or anything that goes wrong in an attempt to repeat my procedure.
With the speedometer cowl and the upper streering wheel cover back in place, the USB cable from the modem exits between the two mounting clips for cowl piece.
After doing this the first time, I've confirmed that it's easier to put the left side dash piece back in place before putting the three steering column pieces back because getting the flange on the right side of the left piece under the cowl piece while also getting the two clips back in position is quite challenging.