Autopilot wires and connectors help

[IslandInfedel]

I have a autopilot controller I need to hook up.

I have the main pos/neg power wires
I have two clutch wires
And I have a cord with the 4 wires that it uses for communication.

What wire do you recommend to extend the 4 wire cord about 15’, and what is the choice for good waterproof connectors for all of this?

Thank you

[smac999]

communication for what ? Why do you need a conector? Can you not connect staight to the controller

Nmea 183?

nmea 2000?.

Display?

Compass?

Rudder feed back?

Lots of wires on a pilot controller.