Got a Cascadia with no west coast mirrors. Makes a BIG PITFA to put antenna's on it. Wilson makes a mount that uses the bolts from the existing mirror cab frame to add a stud that replaces the west coast mirror. I use that to mount my antennas. As to putting a radio in the truck, In the past, due to equipment limitations and company policies pretty much any radio putting out more than 5w was verboten. This was because the policies involved were that:

1: No tapping or direct connection to the batteries.
2: No tapping or direct connection to the truck wiring other than the single dedicated CB wiring harness.

The cb wire harness was made with 18ga wire and fused with a 2amp fuse. More than 5w, blows the fuse or melts the wiring so couldnt run any high power equipment.

Fast forward to this year. Company still has these policies in place. However, the new trucks coming in have a 1500w DC to AC power inverter under the bunk. Talked to the company about what the policies were concerning radio's and the power inverter. They said they didn't care what radios were put in so far as rule 1 and 2 were followed.

That got a bunch of us thinking. 1500w should power a 30amp AC to DC power supply just fine. Asked the company and they said just don't blow the 1500w inverter up and do as you want. So I just bought a Powerwerx 30a PS and a 25ft shop orange power cord. Planning on running the PS from the inverter under the bunk. The new radio is 65w so the Powerwerx supply will handle that fine.

I know it's a bit unorthodox but other drivers making it work so Im gonna do that too. Tired of being w/o my radios. Next tax season, will be getting a HF mobile unit and putting that in. Just have to figure an antenna that will be light enough the wilson mount can hold it.