Installing a Tire Minder booster on a Class C

[Hoski]

We have a new 2019 Greyhawk 29MV (our first RV) that I am looking to install a Tire Minder TPMS in. The manual for the booster says to connect it into an always on 12v. I have seen a number of posts on mounting it in a TT, with a switch to the house battery. I want to easily disconnect it when I put the coach in storage so it will need to be on a switch that I don’t forget about. I can easily use the house battery in the Greyhawk with a separate switch as well, but was wondering if any others have come up with a more elegant solution on a class C chassis.

Thanks
Joe