trim/tilt guage

[foxisland]

Just purchased a new 150, love the motor not quiet so much love for the dealer. The trim gauge goes to full up with key off and goes to full down with key on, motor trims fine but indicator stays full down. I need to know which wires from the harness go where on my Faria gauge. I've e-mailed the dealer but no response and too fr away to go see. Any ideas on how to correctly wire?

[boats.net]

Pink wire in trim/oil harness from engine goes to sender post on gauge. Make sure Faria gauge is for Yamaha/Mercury motors.