we take two set screws and mount our fm radios to the back right panel its wide enuff but just barely...that curved part when it curves to the back part of the cab is kinda tight but it works... just power threw the 3 pronged pluggin and run the antenna wire out the back window
Ours is on the back wall of the cab on the right side. There were already screw holes there from the previous owner. The power goes to that junction box under the right armrest. There's a post there that's a keyed power source; just attach a ring terminal to the wire and put it on there. The radio starts on Ch. 1 every time the key is turned on, but we run on Ch. 40 so it isn't a big deal to turn the dial one click left.