GQ td42 fuel tank sender

[LanaBG60]

Hi all, I am building a custom midmount fuel tank for my G60. I have a GQ td42 sender with low fuel light .
Now, obviously if it was going in a GQ, it would be a no brainer, but I am making a custom loom. it has 4 wires, red, green, yellow and black.
I am being a bit lazy, but I don't want to download a complete manual to just get the wiring colours for the sender. Obviously black is negative.
Can anyone tell me the destination of the others?
cheers
Lana