Finally got everything hookup up the way I wanted it to. End result: X1's turn on with the flip of a switch AND also turn on when the truck is in reverse (yes, I am that lazy. I didnt feel like taking .2 sec to flip a switch when I put it in reverse). If anyone may be interested in doing this, or just wants to spend a day wiring their truck, heres how its done:
1) Buy Blackhawk X1's from TMX.
2) Buy a SPDT relay. (and of course wire, connectors, etc if you dont have it already)
3) The following connections will be made on the relay:
a. 30 goes to red wire on X1's (the black will just be grounded somewhere)
b. 85 goes to Aux switch of your choice
c. 86 goes to ground
d. 87 goes to a constant power source (I used fuse 26, Radio Frequency Module, 5A) using an add-a-fuse.
e. 87A goes to reverse light. I just tapped into the wire about an inch from the bulb although there may be an easier spot. That's just what came to my head first and I went with it.
I mounted the relay behind the glove box to one of the screws used to hold the airbag in place. There's 3 of them there. I also used another one of them for the ground on the relay.
I owe a BIG thanks to Noah (aka nosbusa, aka the car stereo company)! He walked me through step by step and pretty much told me exactly what to do and helped troubleshoot it when it didn't work.
And of course everyone at TMX for carrying such awesome lights at an even better price!