Painless uses the GM connectors I believe , you can go to the wreckers & get a set of matched plugs out of virtually anything & solder your wires onto the male & female plugs , just leave 4" to solder to on both sides of the plugs , GM plugs for the ign switch will not work as they plug straight into the ign switch so no male end , the other solution is to use one of the small 7 pin trailer plugs