This VHF/UHF install was quick and cheap, since everything I needed was laying around in the radio room. The power runs direct to the trailer batteries and the antenna is a short dual band mag mount that sits on the pin box.
I keep a 6ft length of ordinary CAT-5 cable and a RJ-45 butt connector in the cubby hole with the radio. This allows extending the mic so one can recline on the couch while on air.