GMRS Radio Install

Reviving this topic as it doesn’t seem like there were any good answers in previous threads nor other forums.

Has anybody found a way to pass wires from the cab to the 12V batteries?

Also, anybody find a slick way to mount an antenna?

I’m looking to install a Midland MXT575 (https://midlandusa.com/collections/micromobile/products/mxt575-micromobile®two-way-radio) which requires a direct connection as it’s 13.8V and can pull over 50W so 12V plugs are not an option.

In the end, I may have to go with the MXT275 (https://midlandusa.com/collections/micromobile/products/mxt275whip-extended-range-bundle) which is only 15W and can be run off a 12V outlet but would really like the higher powered 575 if at all possible.