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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Old 02-10-2008, 11:00 AM
ddavie ddavie is offline
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Added a Leer cap, need help wiring the 3rd brake light

I bought the cap off of a year old truck and put on my 2005. I have the ground and the dome light wired correctly, but need to know where to tie-in the wire for the 3rd brake light. any ideas on how to run this wire? Thanks!
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2005 F150 STX 4X4
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2008 Equinox - Wife's
1994 F150 - Son's
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Old 02-10-2008, 11:07 AM
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VFR_Man VFR_Man is offline
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When I got the cap on my Ranger, they ran a wire clear up into the cab to tap into a brake wire. Seems like a long way to go, but I guess the connection area stays dry that way.
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Old 02-10-2008, 11:15 AM
ddavie ddavie is offline
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I can do that. I'll go check the brake light switch now to see just how big of a deal this is.
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2005 F150 STX 4X4
2" Leveling lift, ceramic pads, custom dual exhaust
2008 Equinox - Wife's
1994 F150 - Son's
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Old 02-10-2008, 01:10 PM
ddavie ddavie is offline
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No biggie-

Green wire on the brake light switch. I had to run the wire along side of the big wire loom on the drivers side frame rail. I could't feed it through the gromet that was already there (under the drivers side floor), so i drilled a small hole next to it and added a new gromet. worked like a charm. It's a shame there isn't some kind of adapter to give it a factory looks, but it works just fine.

The whole project took about 2 hours...mostly because of trial and error. I imagine if I knew what i was doing from the start it would have been an hour project from start to finish. Shorter if you have a lift
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2005 F150 STX 4X4
2" Leveling lift, ceramic pads, custom dual exhaust
2008 Equinox - Wife's
1994 F150 - Son's
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Old 02-15-2008, 10:56 PM
littlewillie littlewillie is offline
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Quote:
Originally Posted by ddavie
I bought the cap off of a year old truck and put on my 2005. I have the ground and the dome light wired correctly, but need to know where to tie-in the wire for the 3rd brake light. any ideas on how to run this wire? Thanks!
Iím a little late with this, so for future reference. There is a dead end wire for the 3rd brake light on a cap (topper). Itís located in a harness thatís on the frame @ the driverís door behind a cover. See pictures. I have a 2005 Super Crew. I re-routed the wire today & put it in an enclosed shield.

Willie

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Old 02-15-2008, 10:56 PM
 
 
 
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