Looking for a way to control a spotlight I'm mounting on my Phantom. I want to switch the light off and on during flight maybe using the 7th channel if possible. I found a Turnigy Receiver Control Switch at HobbyKing and a Pico Switch R/C Relay ay Hobby Wireless that might fit the bill, but need help on how to wire to Phantom...if it will even work at all. Any ideas? Thanks.