Originally Posted by CBRich

Thanks a lot for your help. There is a relay I want to trigger and the whole thing should fit up under the dash. I'm planning to just run wires straight from the SRM switch to the relay, shouldn't be more than a few inches away.

Looks like Courtesy lists a part called "Mask - Switch Hole" as a separate piece from the whole trim ring. This would imply that the blank can be removed and replaced by the SRM switch. It's looking good, I'll have to order the switch and go from there.