Cap Brake Light
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
Yes, just run the wire down the hole in the enclosed area common to the taillight. I used a 2 prong connector so it is easily removable. Run the wires to the trailer brake light wire and a good ground.
Senior User
Joined: Feb 2008
Posts: 303
Likes: 0
From: Central Washington State
Not trying to be smart a$$, but doesn't it blink with one of your turn signals ? I took mine to the brake light switch, maybe I didn't have to.
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Freshman User
Joined: Aug 2006
Posts: 29
Likes: 0
Thanks for the replys. I was concerned with the flashing as well. I would think the brake light would work but it would also flash when the appropriate turn signal is activated.
It is a long run up to the brake switch from the back of a crew crab!
It is a long run up to the brake switch from the back of a crew crab!
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
The trailer brake signal is just that a brake signal. You also have turn indicator wires in that harness too. There is a small electric unit that most canopy dealers have that allows you to wire it into the lights. You just have to get a wire to each side, then it requires an input from both sides before it will send an output to the third brake light. I have done it both ways, and both work fine.
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
If you have any questions, take a look at THIS ARTICLE, it shows the basics on how to do it.
If you want to go the electrical box route, do a search for BRAKE LIGHT LOGIC BOX
If you want to go the electrical box route, do a search for BRAKE LIGHT LOGIC BOX
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Senior User
Joined: Feb 2008
Posts: 303
Likes: 0
From: Central Washington State
Thats a very interesting article, as soon as it quits raining I'm going out to see if my F250 has that extra wire he describes, At 66 I still do learn something new every day. I also didn't know about the logic box, thanks for the info.
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Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
I just looked at the wiring diagrams for mine.
Sure enough, that light-green wire is shown, and it comes right off the brake light switch before it goes into the multi-function switch.
I'll verify it for myself later tomorrow.
Pop
Sure enough, that light-green wire is shown, and it comes right off the brake light switch before it goes into the multi-function switch.
I'll verify it for myself later tomorrow.
Pop
Cargo Master
Joined: May 2010
Posts: 3,047
Likes: 10
From: Snohomish, WA
at Wally World. They were $14. Slim line little lights, far from driving lights but great canopy lights. I just wired them to the parking lights circuit, so you have to have the lights on to make them work, but was a simple hook-up. I ended up using the cheesy rocker switch that came with the lights. 
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