Do you have to run fuel into the cabin to have a gauge?

I would like to put a fuel pressure gauge so i can see it. Also I want to replace all my gauges with autometer ones. Can I use the wires that hook into the stock ones to run the auto meter ones?

No, Auto Meter sells a remote diaphram sending unit, It would be pretty dangerous to run fuel in the cabin.

get the electric fuel presure guage.. it will work basically the same your oil pressure guage works (sender is on the engine)