Also I have ordered the relays for the couplers and smoke unit. I will use the original smoke unit switch on the frame to manually interupt the function ground to the relay. So I do not accidentally switch it on in the app with no smoke fluid or I can just completely turn it off if I don't want to run the smoke unit.
The run program switch will be used to select front and rear couplers by switching the function ground between 2 relays (one for the front coupler and one for the rear). As I think that switch is not designed to have like 2 Amps of power run through it, so the relays will handle all that power instead.
