I Am Looking For A Mount For Our Class C Jayco RV

 

My wife and I have a class c motorhome. It has a Sony XAV-AX8000 that we use with Google maps on a Google Pixel 6 most of the time. It works okay most of the time.

However, there are times in which I would also like one of my Garmin GPS to be used at the same time. It would likely be a Garmin Nuvi 3597. My wife wants nothing on the dash, so that rules out suction cup windshield mounts and bean bag mounts. Ideally, it would be right below the Sony XAV-AX8000 screen. Has anybody seen any sort of mount that would attach to an existing in dash unit and still provide the Garmin ball mount?