Boat Wire Color Coding

[toneeees]

Red	DC Positive Conductor	Positive Mains
Black or Yellow	DC Negative Conductor	Return, Negative Mains
Green or Green w/ Yellow Stripe	DC Grounding Conductor	Bonding System Bonding Wires (if insulated)
Brown	Generator Armature	Generator Armature to Regulator
Alternator Charge Light	Generator Terminal/Alternator Auxiliary Terminal to Light to Regulator
Pumps	Fuse or Switch to Lights
Grey	Navigation Lights	Bonding Wires (if insulated)
Tachometer	Tachometer Sender to Gauge
Orange	Accessory Feed	Ammeter to Alternator or Generator Output and Accessory Fuses or Switches
Common Feed	Distribution Panel to Accessory Switch
Pink	Fuel Gauge	Fuel Gauge Sender to Gauge
Purple	Ignition	Ignition Switch to Coil & Electrical Instruments
Instrument Feed	Distribution Panel Electrical Instruments
Brown w/ Yellow Stripe	Bilge Blowers	Positive Mains (particularly unfused)
Yellow w/ Red Stripe	Starting Circuit	Starting Switch to Solenoid
Tan	Water Temperature	Water Temperature Sender to Gauge
Green/Stripe (G/x)(except G/Y)	Tilt Down and/or Trim In	Tilt and/or Trim Circuits
Blue/Stripe (Bl/x)	Tilt Up and/or Trim Out	Tilt and/or Trim Circuits

Thanks to Ancor by Marinco for providing the chart. Photo by Shandchem.