My truck 2002 Silverado had the drop down door for the hand held garage door opener. I got the 3 button Homelink insert from a 99 tahoe at a salavage yard. All went O.K when I went to install it except I had only the hot & ground wires in my truck overhead console. What I'm wonder is what is the simple way to wire the illumination on the new 3 button homelink panel, I just installed? I don't want to wire it to the hot 12V. I would like it to work like the factory install. Please dont answer with a bunch of odd ball suggestions, like Ive seen done with other posted questions.. ie, I wish I had it, or "I could use two of them etc.