How to hook up factory dash temp combo gauge? Options

[Porscheman912]

I had to replace my gauges in my car, or have them rebuilt, but I just bought some used ones. The fuel gauge has the combo temp gauge in it. There were wires still hooked up on the back, because they were cut, and I know where the power wire comes from, fuel gauge, but there was a green wire with black dots or stripes. Where does that wire go, or is there a factory place to hook in the wiring harness, plus where is the sending unit located, and do I need to get one, or is one already there? This is a 75 1.8 car. Any help would be great.
Thank you

[detoxcowboy]

power, ground, and lamp can be jumpered off another source in the already busy 3 gauge cluster, then just add length to the sender wire so it can reach the dash cluster.. the three gauge cluster in the center console is "jumpered" shared source from factory in same manner but it is un-seen beacuse of the wire harness casings making it appear each gauge has a seperate source... also if your retaining the center console it is a good idea to make a plug connector for any wires from there leading up to your dash gauge cluster so you can remove the console without having to cut wires.. or route your wires out the rear of center console under the carpet along the main harness around your pedal cluster and back up around the fuse panel then they will not be in the way anymore..

use similar gauge wiring.. the 914 has metric gauge so unless you have another harness to cut from the gauge equivelent will be slighlty larger, do not go to large or to small get close..