wiring help

so I am installing an aftermerket fuel gauge but need to know which plug and which wire i need to use from the original cluster plugs to tap into to make it work

thanx in advance for any help

FSM

whats FSM

service manual

dont got one, anyone know where to find the wiring online?

google for the factory service manual. they are there for all year of 240/silvia and with the convertible supplement.

Edit:

Checked the fsm for you and the wire you are looking for, the fuel gauge signal wire, is green with blue stripe. There should be two wires on the gauge, one gree/blue (G/L in the fsm) and a black one. The black one goes to a body ground.

Yup did some wire testing and thats the one i found that was the signal wire.

Thanx

chalk one up for the FSM