I did some playing around with the relay that I will use for the E-Bus (Extra Bus) switch and to energize the 2 rows of CBs. This is a 30A relay so it will easy handle the E-Bus load. It took a little time to build up a few spare wires for the test, but all was successful in the end. I set it up to illuminate the green "smoke on" light when I flipped the wig-wag switch. I tried to get the relay (top left), light (upper center) and switch (lower right) in the picture below.