My GPS (Garmin 76c) sits in a mobile phone holder on the consul infront of me . Its one of those with foam pads that you just push together to clamp it in place . I tie it on just incase .
My hand held VHF is the problem , the phone mount won't work because of the buttons on the side of the radio. I spent a while trying to find a way to secure it with the belt clip , but it would just swing about . So I have decided to find a nylon bag with a velcro flap and fix that on the side of the consul. Just got to find the right size bag , probably one of the padded camera bags will do it .