Light wiring for gauges? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mountain Man · 04-08-2002, 07:43 PM

I have added Autometer tach, volts, and oil pressure gauges in a tri holder on the bottom of my dash. I would like to hook up the light bulbs for night driving, so I can keep an eye on things.

What wire can I tap into. The bulbs in the stock dash are fed by a printed circuit , so I don't think I can find a place to splice into there. I don't have a light on my cigarette lighter either.

What have some of you done to hook up accessory gauge lighting?

71Chev · 04-08-2002, 07:59 PM

You can tap directly to the panel light fuse, in your fuse box. they will dim and brighten as the dash lights do when you turn the headlight knob.

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71 Chevy CST Long Fleet 350/350/3.07 leaf rear.
Email: 67-72truckparts@nanosecond.com

Mountain Man · 04-08-2002, 08:04 PM

71Chev - Can you help me with a bit better description. Where on the fuse panel is the plug for the panel lights? My fuse panel has most of the white lettering wiped off of it. Not real good with wiring , in case you could'nt tell

71Chev · 04-08-2002, 08:07 PM

top right vertical fuse, it did say PNL

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71 Chevy CST Long Fleet 350/350/3.07 leaf rear.
Email: 67-72truckparts@nanosecond.com

Duallie · 04-09-2002, 01:35 AM

Look for the plugin nearest the shortest fuse.

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Just as if I knew what I was doin'

BubbaGreen · 04-09-2002, 10:16 AM

If you have a tilt style column in your
truck, there 'should' be a grey wire coming
from the fusebox...it goes to the light in
the column to light the P R N D L2 L1 bezel
Just tap into that wire for your new gage
back lights..., just make sure your gauge
housings are connected to a ground to make
it all work

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71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73
See it at www.prismnet.com/~grzanich

JimKshortstep4x4 · 04-09-2002, 12:43 PM

You can also use the gray wire that feeds the bulb or bulbs on your heater control or
heater ac control, which ever you have.
If you tie into that wire your lights will dim with the dimmer.

Jim

04-08-2002, 07:43 PM	#1
Mountain Man Registered User Join Date: Jan 2002 Location: Calgary, Alberta, Canada Posts: 451	Light wiring for gauges? I have added Autometer tach, volts, and oil pressure gauges in a tri holder on the bottom of my dash. I would like to hook up the light bulbs for night driving, so I can keep an eye on things. What wire can I tap into. The bulbs in the stock dash are fed by a printed circuit , so I don't think I can find a place to splice into there. I don't have a light on my cigarette lighter either. What have some of you done to hook up accessory gauge lighting? __________________ 72 C10 Cheyenne Super Full trim Factory tach dash A/C dash Factory tilt 350 / 350 power train - with Edelbrock components.

04-08-2002, 07:59 PM	#2
71Chev Senior Member Join Date: Dec 2000 Location: Indiana Posts: 3,074	You can tap directly to the panel light fuse, in your fuse box. they will dim and brighten as the dash lights do when you turn the headlight knob. ------------------ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear. Email: 67-72truckparts@nanosecond.com __________________ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.

04-08-2002, 08:04 PM	#3
Mountain Man Registered User Join Date: Jan 2002 Location: Calgary, Alberta, Canada Posts: 451	71Chev - Can you help me with a bit better description. Where on the fuse panel is the plug for the panel lights? My fuse panel has most of the white lettering wiped off of it. Not real good with wiring , in case you could'nt tell __________________ 72 C10 Cheyenne Super Full trim Factory tach dash A/C dash Factory tilt 350 / 350 power train - with Edelbrock components.

04-08-2002, 08:07 PM	#4
71Chev Senior Member Join Date: Dec 2000 Location: Indiana Posts: 3,074	top right vertical fuse, it did say PNL ------------------ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear. Email: 67-72truckparts@nanosecond.com __________________ 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.

04-09-2002, 01:35 AM	#5
Duallie Registered User Join Date: Feb 2001 Location: Nikiski, Alaska Posts: 477	Look for the plugin nearest the shortest fuse. ------------------ Just as if I knew what I was doin' __________________ Just as if I knew what I was doin'

04-09-2002, 10:16 AM	#6
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	If you have a tilt style column in your truck, there 'should' be a grey wire coming from the fusebox...it goes to the light in the column to light the P R N D L2 L1 bezel Just tap into that wire for your new gage back lights..., just make sure your gauge housings are connected to a ground to make it all work ------------------ 71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73 See it at www.prismnet.com/~grzanich __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich

04-09-2002, 12:43 PM	#7
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	You can also use the gray wire that feeds the bulb or bulbs on your heater control or heater ac control, which ever you have. If you tie into that wire your lights will dim with the dimmer. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC



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