Nexus 7 Car Holder

m8 of mine needed a Nexus 7 holder in his car.
He sells some cool incar cameras so it also neeed to fit above an existing screen (see pics)
Wanna c if he can post the crash online before the car comes to a halt.

UPDATE:
Sorry forgot to add that this is for a Nexus with a case on so it will be deeper than a nexus without a case. The brief was the case (Flip style) must fit in it as well.
If you look at the incar pic u can see the case its very thin but the holder has the be wider and longer by about 4mm to handle it.