Parthery said:
GW Customer Care is 252-752-2111
But - You can also go on the website, register the boat to you as the new owner (a good idea as it gets you on the mailing list) and download the owners manual. The owners manual has a full wiring schematic.
Parthery is correct and I missed the full wire harness chart included in my manual. I believe that particular wire I was inquiring about may be for the macerator pump. My son who also uses the boat informed me that he keeps the fuse out of that slot to disable the pump to be in compliance local waste discharge regs.
ACCESSORY WIRING COLOR - FUSE/BREAKER
Accessory Wire Amperage Location
Lights
Aft Pole Light 14 ga. Gray/White 10.0 w/ bow light Accessory Panel
Bow Light 14 ga. Gray 10.0 Accessory Panel
Cabin Lights 16 ga. Blue/Green 10.0 Fuse Block
Cockpit Lights 16 ga. Blue/Yellow 10.0 Accessory Panel
Console Lights (Interior) 16 ga. Blue/Green 5.0 Fuse Block
Livewell Light 16 ga. Blue/Red w/ Livewell Pump Accessory Panel
Mast Light 14 ga. Gray/Red w/ Bow Light Accessory Panel
Panel Lights 16 ga Dark Blue w/ Nav Lights Accessory Panel
Spreader Lights 14 ga Dark Blue/White 10.0 Hardtop or T-top Fuse Block
Pumps
Bilge Pump (Aft excluding 226 & 228):
Rule 1500 16 ga. Brown 8.0 Accessory Panel
7.5 Near Battery
8.0 In Battery Select Box
Bilge Pump (Forward) (226 & 228 Aft also):
Rule 1100 16 ga. Brown/Black 6.0 Accessory Panel
5.0 Near Battery
6.0 In Battery Select Box
Rule 1100 (Integrated Float) - 257, 255,
275 & 283 16 ga. Brown/Black & Brown/Red 6.0 Battery Select Box & Accessory Panel
Head - Head Pump (Marine Electric) 10 ga. Red/Gray or Red 25.0 Fuse Block
Head - Control Panel, Holding Tank, &
Macerator (Marine) 10 ga. Orange/Red 20.0 Fuse Block
In-line Macerator Pump 10 ga. Orange/Gray 20.0 Accessory Panel
Livewell Pump
Sentry 1100 GPH 16 ga. Orange/Brown 6.0 Accessory Panel
Sentry 800 GPH 16 ga. Orange/Brown 5.0 Accessory Panel
Shower Sump Pump (Float Switch) 16 ga. Brown/Orange 3.0 Fuse Block
Washdown Pump 12 ga. Orange/Brown 15.0 Accessory Panel
Water Pressure Pump 12 ga. Orange/Blue 15.0 Accessory Panel
Power Assist Pump (ignition) 16 ga. Purple 5.0 Yamaha ignition panel (in line)
Power Assist Pump (main) 8 ga. Red 50.0 Battery Compartment
Anchor Windlass (232 & up)
Anchor Windlass (232 & up) 6 ga. Red 35.0 At helm near switch (all but 306);
306 in console rigging area
Positive to Switches (306 only) 14 ga. Red 5.0 In-line @ Solenoid
Down (306 only) 14 ga. Green/Orange N/A N/A
Up (306 only) 14 ga. Blue/Orange N/A N/A
Miscellaneous
12 Volt Accessory Outlets 10 ga. Red/Orange 15.0 Fuse Block
Amplifier 10 ga. Red 10.0 Fuse Block
Accessory Negatives (Branch) Black1 N/A N/A
Accessory Negatives (Mains) 4, 6, or 10 ga. Black N/A N/A
Accessory Panel Power Lead 4, 6, or 10 ga. Red 40.0 / 50.0 Near Battery or in Battery Select Box
Constant 12V (Memory, High Bilge Alarm) 16 ga. Red/Pink 10.0 Near Battery or in Battery Select Box
High Bilge Alarm Sender Wires 16 ga. Red/White Sender
16 ga. Brown/Pink Return N/A At panel and Float switch
Electronics Box Ram (273, 283, 306 Only) 16 ga. White 5.0 Accessory Panel
Fuel Grounds 16 ga. Green N/A N/A
Fuel Tank Sender (Auxiliary) 16 ga. Pink/White N/A N/A
Fuel Tank Sender (Main) 16 ga. Pink N/A N/A
Hardtop or T-top Negative (Main) 10 ga. Black/Blue N/A Negative Buss
Hardtop or T-top Power Lead (Main) 10 ga. Red/Blue N/A Fuse Block / Positive Block
Horn (180-222, 255, 257, 273, 275, 283,) 12 ga. Orange/White 5.0 Accessory Panel
Horn (225, 226, 228, 232, 258, 306, 307) 12 ga. Orange/White 10.0 Accessory Panel
Hydraulic Trim Tabs 14 ga. Orange 20.0 Fuse Block
Power Seats (255, 275, 307)
Positive 12 or 16 ga. White/Orange 10.0 Fuse Block
Actuator Control - Extend 14 or 16 ga. White/Green
Actuator Control - Retract 14 or 16 ga. White/Black
Refrigerator 10 ga. Orange/Yellow 15.0 Fuse Block
Stereo 16 ga. Red 10.0 Fuse Block