2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 126Get this manual
ELECTRICAL AND IGNITION DASH CONNECTIONS, INSTRUMENT HARNESS
DASH CONNECTIONS, INSTRUMENT HARNESS
3-pin connector Connect to trim switch located in the handle of the remote control or to trim switch mounted on the boat dash
6-pin connector Connect to pre-wired remote control or to dash-mounted key switch
Black, purple, whitetan wires Connect to the trim gauge