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Registered
Join Date: Dec 2006
Location: Northern VA
Posts: 585
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Running electrical wire to engine compartment
I want to run a electrical wire from the cockpit back to the engine compartment for a command actuated [toggle switch] rear fog light.
First blush - use the hatch - tunnel and route the wire through there . Anyone with experience in this area? recommendations ? warnings? thanks kgl
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Kim Langley 2012 Carrera / 991.1 80 911SC 97 C230 73 BMW 2002Tii |
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09-20-2020, 07:05 AM
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Join Date: Jan 2011
Location: Gulf Coast FL
Posts: 1,485
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Look under the drivers side rear bumper, wires for the fog light are probably already hanging there.
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09-20-2020, 07:21 AM
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ROW '78 911 Targa
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White/Green wire behind rear defogger switch goes to the wires for the rear fog lamp.
Just switch power to it.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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09-20-2020, 08:43 AM
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Join Date: Dec 2006
Location: Northern VA
Posts: 585
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the existing wires are 40 years old - and have seen their best days _ I want to run fresh wire - protected with nice temp loom - just want some advice from someone who has routed some wire back to the engine compartment
kgl
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Kim Langley 2012 Carrera / 991.1 80 911SC 97 C230 73 BMW 2002Tii |
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09-20-2020, 02:43 PM
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Kim: I have done this exact job on my 78 sc. There was no factory wiring in place for the rear fog on my car. I did not want to drill any holes in the car to run wiring.My solution was to use 2 conductor trailer wiring which is covered in a gray weather proof sheath. Starting at the rear fog light, I ran the wiring inside the rear bumper to the passenger side of the car, then went along side the tin engine seals until I could pick up the ac hose. Using zip ties, I clipped the wire to the ac hose, tucking it well up inside so it is not visible. I followed the ac hose into the smugglers box. From the smugglers box you can get into the frunk. You can then get to the fuse panel to get a source of switched fused power.(Fuse no 5 was used). I also added an in line 5 amp fuse to protect the fog light circuit itself. I Ran the wire to a new switch through an existing grommet Just near the headlight switch. Peel the carpet back just a bit inside the car to see the grommet. In my case I needed a new switch on the dash to fill in hole left by the P.O. I used a Hella illuminated pull switch purchased from Pelican and bought a fog light decal for a BMW switch on eBay and burnished it onto the switch. Hopefully this helps you. ~ Karl
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09-20-2020, 03:08 PM
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Heinz
