Wiring question for my fuel pressure gauge

[RedfireSVT]

i have a fuel pressure gauge that i am going to mount on the steering column and i need a little help with the wiring. there is a ground, 12 volt keyed ignition and 12 volt dash lighting wires in one plug then there are two more wires with an inverter in another plug and they are also labeled 12 volt dash lighting and ground. anyone know why my gauge has 2 sets of the same wires and do i just tie them into the same wire in the truck? the second set of wires is possibly supposed to be wired to the dial that controls the brightness? it is a speedhut gauge if that matters. if anyone can tell me were they spliced into for their gauge or has some type of wiring diagram i would appreciate it.

[2 stroker]

What gauge did you get, i have the Autometer 1 ground 1 Hot 1 light if i remember right
2 stroker

[RedfireSVT]

its a speedhut fuel pressure gauge. i'm starting to think the 2 extra wires with the inverter are for mounting multiple gauges. do you remember which wires you tapped into? the ground is easy but the keyed igniyion and dash wires i have no idea.

[2 stroker]

I have the upfitter switches so i just did 3 to power the gauge and 4 for the light still have 2 switches left may never use them don't know.
2 stroker