SMI brake system set up
So here is the scenario: Recently purchased a 2001 Airstream 30' Land Yacht, P30 Chassis. Included with the unit was a Roadmaster Sterling tow bar and SMI four wire brake system as well as a tow bracket. The MH is is set up with a G force 2 controller mounted at the drivers position. At the back of the coach is a standard tow hitch, a four wire trailer lighting plug, the square six pin plug for the SMI box and the screw in socket for the vacuum connection for the SMI brake box. I have not crawled end to end on the MH to track out the wiring.
Reading the information with the brake set up it appears that the vacuum connections would be on the TOWED vehicle rather than the coach. I called SMI and spoke to a person there who confirmed that but was otherwise not terribly helpful.
We recently purchased an 05 Honda Element (manual trans) to tow and a Roadmaster MX tow bracket. I hope to install the tow bracket this week and as for lighting will use a magnetic mount lights to plug into the trailer light. My concern is why would the vacuum connection be on the MH rather than the toad? I like the idea of being able to minimize electrical and vacuum connections on the toad so can I just run a vacuum line to the toad and plug in the SMI square connection and call it good?
Thoughts or concerns are appreciated.