New to turbo.. Gauges..???

[YJwrangler]

I bought these gauges from a guy one bay. boost and air fuel gauges. Iam getting ready to turbo charge my wrangler. Comin off the boost gauge there is the a tube.. I know where that goes. There is also a red and black wire. they run to a small black box. Then the air fuel gauge has a purple wire i think runs to the o2 sensor but it also has a red and black wire that also run to this same black box. COming off this box is a potentiometer... How do i install these It doesnt seem like there will be power running to it. The potentiometer has 6places to hook up to.. only 4 are use.. the 2 on the one end are not.?? help me please

[myplasticegg]

Are you able to take a pic and show that? That will get you the best help. If you need to host it, just ask around and i'm sure someone will help you out.

[charger R/T]

sounds like the pot was set up for the dashs light. Sounds like you wire it to 12 volts and the pot can be used to dim the lights in the gauges. Pretty clever.
Tim