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Can You Tap Into A Magnetic Light For The Brake Signal When Using The Roadmaster Invisibrake  

Question:

I have magnetic lights that I mount on the trunk of my vehicle for towing. They contain the the turn,traveling,and brake lights using a wire from the tow vehicle which I run through the engine compartment, through the door inside the vehicle to the trunk then out to the magnetic lights. Can I use this signal to activate the invisbrake. I can place the box in the trunk next to the battery to power the system. When not towing I would unplug the the lights and store them in the trunk.

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Expert Reply:

Yes, the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 only activates off of the brake signal for your motorhome's tail lights so you would be able to splice into the magnetic light wiring harness to get that brake signal. You will still need to ground the Invisibrake to vehicle though.

As for installing it in the trunk, you will be limited by the length of the included air line tube. You'll have to run tubing from the box to the engine bay and from the box to the pulley so I recommend getting a rough measurement for those lengths and order it with part # RM-450701, which will allow you to order by the foot. You won't want to splice together multiple lengths as this would give you more chance of a leak.

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Kevin C
Invisbrake Wiring
Invisbrake Wiring
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