Rear camera installation

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jakewalter

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Northern Michigan
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Jake
Truck Year
1985
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K20
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454
I am in the process of installing a rear camera for my truck camper.

I am working on my 85 K20 with an automatic transmission.

I need to tap into the backup lights.

Rather than run a wire back to the taillight I was wondering if I could tap into the wiring underneath the dash.

If anyone knows where the wires are I would appreciate the help.

Thanks so much,
Jake
 

YakkoWarner

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Central Texas
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Wolf
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1989
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R2500 Suburban
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I am in the process of installing a rear camera for my truck camper.

I am working on my 85 K20 with an automatic transmission.

I need to tap into the backup lights.

Rather than run a wire back to the taillight I was wondering if I could tap into the wiring underneath the dash.

If anyone knows where the wires are I would appreciate the help.

Thanks so much,
Jake

I am not sure that wiring will be under the dash since nothing in the cab actually depends on it - my understanding is there is constant +12 going to the switch on the transmission (which closes when you move the selector to "R") and then from there it goes right to the reversing lamps. The closest point to grab that signal might be at the transmission itself.
 

Rickf

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Grafton NH
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1974, 1954 & a 1937
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My rear camera needed one power supply when the vehicle is on and one signal (reverse light) to turn it on. Is your setup similar?
 

Scott91370

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If you can't find it put in a switch that you can use to turn it on anytime you want.

Flip switch, camera comes on.
Put truck in reverse and back up.
Turn switch off.
Put truck in drive and drive off.
 
Last edited:

Steelbuddha

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Central North Carolina
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Jonathan
Truck Year
1984
Truck Model
K20 (dump bed)
Engine Size
350
If you can't find it put in a switch that you can use to turn it on anytime you want.

Flip switch, camera comes on.
Put truck in reverse and back up.
Turn switch off.
Put truck in drive and drive off.
Yep -- the screen for my camera has an on/off switch on the face of it.
 

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