I have a 2019 Thor Sprinter 24SK. it does not have a MB 7 pin wiring harness but it does have one installed by Thor. I have no information as to where the other ends are so i can install a trailer brake controller. while digging around i did find a blue wire loose laying in the battery box under the driver floorboard. the red wire that adjoins it has a 30AMP fuse and it runs to the 7 pin connector.
I feel confident that the blue wire activates my trailer brakes and goes to the blue wire on the brake controller. i will splice into the 30amp fuse red wire and run it to the black positive wire on the controller. the white wire will be grounded off the battery terminal and the black wire of the controller will go to the brake light switch under the dash.
i attached pics
any thoughts, anything i have missed??
I feel confident that the blue wire activates my trailer brakes and goes to the blue wire on the brake controller. i will splice into the 30amp fuse red wire and run it to the black positive wire on the controller. the white wire will be grounded off the battery terminal and the black wire of the controller will go to the brake light switch under the dash.
i attached pics
any thoughts, anything i have missed??
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