I have a 2015 34f as well.
The antenna booster should have 3 connetions. If I remember correctly there is a white coax cable, a brown cable and a black one . The brown is the antenna input, the white one is the cable input from the outside, and the black one is to the tv's . The light should be on for antenna and off for cable. The white and brown go on the 2 sided input and the black on the 1 sided output. My tbs work fine with the stock antenna. I hope you like you 34f as well like ours and I have made many modifications to the interior and handling . Good luck and happy travels
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