I was looking for a way to mount my GPS (kinda big) and the CB radio. I fabed up a "rail" from two pieces of thin wall electrical conduit.
I used the roll bar for a base and had to do some fitting to get spacing right, drop it some, and had to make some brackets to stiffen the conduit as it was a little too flexible.
I have had it on numerous rough trail outings and it is working good. The mic chord can be a nuisance when I have a passenger.
I was concerned about head banging, and seeing out the rear mirror, it is clear and safe.
Testing has been good, so I need to remove to paint and more careful routing of wiring (mostly the gps wire)