Quoted from Ecw0930:
The light is going in the shooter rod area. I don't have a long enough extension. I suppose I could make one.
But where is the ATX and what is it and what does it look like? And how do I connect to it?
Yeah, you'd have to make one. The ATX power supply is just a computer (PC) power supply in the backbox. You can just modify an ATX splitter and tap into it.
Splitter is like this (quick search only brought up multipacks of them, but this is the kind of splitter you're looking for):
amazon.com link »
It has 5V and 12v, so you can pick the voltage you need and connect your extension to that.