All data within the zig zag striped area indicated aftermarket parts hookup. For the 220 version engine stop switch namely. For the 220 version ignition switch: (arbitrairily) WHT to WHT, BRN to BRN, BLK to BLK/Y, YLW to YLW/R. All 'harness side depictions are from the plug.on the harness on the side that plugs into components. WHT is unswitched power directly from battery. BLK/Y is unswitched GROUND. BR in switch from key switch(ingnition) from WHT to BR. BR is connected to fuel pump(BLK/W).