Thats what I thought at first to, but its not even possible because of the shape of the plugs. Everything was definitly hooked up right.
Something I noticed, Im not sure if its a problem, is on the LVC, the negative signal wire from the LVC to the receiver is soldered onto the same point as the negative voltage signal wire from the battery wires. So the negative receiver signal wire (about 6 volts) is connected to the negative side of the 14.8 volt battery circuit.