I use a Lamicall Car Vent Phone Mount - Air Vent Clip Holder I found on Ama-of the-zon. I have used this in a Nissan Rogue and Hyundai Tucson. No batteries in the scanner and the power cable sits above the mount. I took off the belt clip and put the screws back in.
It may not work in every car or truck. There was another one I used that I last saw in a Dollar Tree store. It has one rubber connector on the back. I do not leave it mounted when not is use due to the high heat where I live now.