Can someone please point me to where I can get the short adapter to convert the flat 3 prong Tilt& trim plug to the newer style triangle shape plug. Motor is a 1979 Evinrude 70HP and a OMC Binnacle style Control. Old flat pin is heavier wire than the new thin pin. Was thinking of just cutting plugs and connecting but would like to be able to disconnect in case of trouble. Thank You.