Hello. I have an old trolling motor,looks like from the 70's or 80's,and the F/R switch finally went out. I bought a new switch from Home Depot,a Gardner Bender GSW-16 ON/OFF/ON that has 6 blades on the back. I connected the original 4 wires on the T motor and it runs fine in forward(both low and high speed). My question is can I somehow use that new switch to also provide reverse? The old switch only had 4 blades on back and some X shaped flatbars,which I assume provided the reverse action somehow. Or should I just buy a switch that is built for "Reversing" action? TIA