Not sure if its still available but I have a Blue Ox wireless brake applied indicator. Both units, MH and dingy, plug into the cig lighter. The dingy unit also attaches to the hot side of the vehicle brake light. This saved me the trouble of running the hardwire LED light that came with the readybrake.
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Tom and Lisa
Pennsylvania
2015 Challenger 37TB
2015 Ford Taurus toad
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