Cigarette lighter wire? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eagleuh1 · 02-12-2011, 06:03 PM

Anyone know what the large orange wire coming from the cig. lighter spot in the fusebox would be for. It doesn't go to a cigarette lighter. This is in a 68 C20 with AC. It looks like it goes into the heater/AC controls, but couldn't tell for sure. Was trying to hook up new cigarette lighter and there's a wire there already. Thanks.

**Classic Heartbeat** · 02-12-2011, 06:23 PM

Don't know about an orange wire. The radio power wire is red though. The wire that goes to the heater or A/C wire harness it brown. WES

eagleuh1 · 02-13-2011, 08:12 AM

I unplugged it and the radio and heater/ac still works. Guess i'll have to pull the vent ducts off to see where it really goes.

48richard · 02-16-2011, 10:19 PM

On my 71, the large orange wire connected to the "cig" terminal goes to the blower motor relay on an A/C truck. The brown wire goes to the blower control switch. This is correct according to the A/C wiring diagram in the service manual. The cigarette lighter wire is connected to the "ign unfused" terminal.

Richard

02-12-2011, 06:03 PM	#1
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Cigarette lighter wire? Anyone know what the large orange wire coming from the cig. lighter spot in the fusebox would be for. It doesn't go to a cigarette lighter. This is in a 68 C20 with AC. It looks like it goes into the heater/AC controls, but couldn't tell for sure. Was trying to hook up new cigarette lighter and there's a wire there already. Thanks.

02-12-2011, 06:23 PM	#2
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Re: Cigarette lighter wire? Don't know about an orange wire. The radio power wire is red though. The wire that goes to the heater or A/C wire harness it brown. WES __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

02-13-2011, 08:12 AM	#3
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Re: Cigarette lighter wire? I unplugged it and the radio and heater/ac still works. Guess i'll have to pull the vent ducts off to see where it really goes.

02-16-2011, 10:19 PM	#4
48richard Registered User Join Date: Oct 2009 Location: Phoenix, AZ Posts: 475	Re: Cigarette lighter wire? On my 71, the large orange wire connected to the "cig" terminal goes to the blower motor relay on an A/C truck. The brown wire goes to the blower control switch. This is correct according to the A/C wiring diagram in the service manual. The cigarette lighter wire is connected to the "ign unfused" terminal. Richard __________________ 1971 C10 Longbed, 350/TH350

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