Happy...I see no reason why your setup wouldn't work properly for camp side cable, satellite or over the air antennae. Have you checked all connections and certain they are secure and routed as you mentioned? I don't have the A/B switch or splitter that you installed but I only have satellite and over the air signal with mine.
Not sure where the fuse for the amp is located. I would check the areas that Jamie mentioned.
Hope you can resolve it. Let us know what you find. Good luck.
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