Track sunday!! How to power up my s13?

[csilvers1984]

I recently purchased a 89 SE hatch for my Lsx drag build. The previous owner hacked up the engine bay harness and now I'm lost.

Here's what I have....

Ing has power
HL flip up with key/on power
Starter wire works
HL work off switch

Here's what I DON'T have...

No gauge lights or working gauges,power windows,int lights,HVAC,seat belts

So my question is "can I power the int through a single 12v source?" I have the car running and driving but I really need some gauges and SEAT BELTS haha.

Any immediate help is greatly appreciated.

Heres a quick pic as you can see I still have both fuse/relay boxes.

http://i786.photobucket.com/albums/yy141/csilvers1984/040BDE88-6327-4592-B616-3D8A06F301EB-3431-000002CA1EB9FA4C.jpg

[godsmack]

Did you hook up power to the 2 connectors by where the original battery are?

[csilvers1984]

Did you hook up power to the 2 connectors by where the original battery are?

Theres power running to the largest relay box hooked to wires white/black.

[csilvers1984]

The motor let go and car is being parted out. No longer need wiring help haha.