Dad had an extra GPS so it had to go on the bike also. The virtual mount(it's clear so you can't see it) is from 3/8" polycarbonate. 3 1/2" wide and 5" long. The backing plate is from the same materia and goes under the metal piece on the dash. 3 stainless screws and you are ready to go.
I saw one of the Whelen strip lights on the back of a LEO bike and decided that would be the way to go. The light mount was made out of 1" aluminum flat bar with some stainless screws with lock nuts. Redrilled the holes for the license plate to move it down. Since I left the blubs in place the CAN bus is still happy. For stop and tail I made spade and lug splices so no cutting of wires. The blinkers were soldered into the lugs on the flashers. I bought it in Houston at the Whelen distributer. Fleet safety Equipment. You can find them on the web for a bit cheaper. There are a bunch of different combos of LEDs. I got the Strip LED with Amber turn. model PSRASXCR They are about $100.