Supplimental Brake System for 2016 Chev 1500 Silverado 4X4

If your coach has air brakes (I'm assuming it does), use a braking system like the Air Force One that uses coach air to activate it. Totally proportional, reliable and has a system to protect the coach air supply in the event of a breakaway. Not cheap, but you probably have close to six figures invested in your combo already. Another electricity-free option is a Ready Brake system. Power your toad lights from the coach using inline diodes. The electric brake boxes work fine but they are not your only option.