I have a 1972 Mercury 40hp. outboard motor<br />(Model 400). I would like to bypass the <br />key switch that is on the controls and install<br />a new 3 position (Ignition/Start/Battery)<br />key switch on the console of the boat. Can this be done. The key switch and all wires in the controls are all bad. If this can be done does anyone know how the cables from the motor attach to this 3 position key switch. I would appreciate any help. I am very confused about this.