Just check the legality of that matey!i'm looking to make them in to a pair of Rear fog lights to house on my parcel shelf.
I think they are only allowed to be a certain height from the ground so as not to dazzle other drivers.
Correct
http://www.opsi.gov....n_16.htm#nsch11
also unless you made a pod that held them to the window you would dazzle yourself inside the car from the relection from the screen. This is why aftermarket high level brake lights have a cowling over them