Tach Wiring/Auto Pilot

[netprofit]

Hello All, i am hoping someone can help me with my A/P installation. I have Twin 08 350hp 4strokes. I have the square guages. The auto pilot has to tie into the tach wire from each engine. Does anyone know the color of this wire behind the tach? Thanks in advance.

[boats.net]

Yamaha has an analog tach signal converter, part number MAR-6X6DA-C0-00 that plugs into a open device port on command link hub.