On my prior rig the unit supplies the power to the antenna and hence no wall plate. The Aux should not be necessary for the front TV. I suspect that the unit has been rewired either internally or externally, perhaps due to the converter box.
Reason: It's likely that the converter box could not be connected to the coax going to the antenna because of the DC voltage being sent up to the batwing. Anything connected to the Aux input? Is the converter box removed?
"I direct connected the Rear TV to the coax input to the splitter."
Is that a typo? The input to the splitter should go back to the unit and the outputs to the storage and rear TVs.
