Trying to change Key ignition switch from 5 prong to 6 prong

[PontoonOwner]

I am completely clueless, Bought a 1999 pontoon with merc 50 hp with lost key. Was told to switch out switch, could only find a 6 prong. Can anyone tell me based on the picture #3 what wires go to what on 6 prong switch? and is any of the wires in box connected to what on switch?
Thank you and Much Appreciated,

 

[ahicks]

My thought is a project like this can be a challenge for guys that know what they are doing, even with wiring diagram in hand...

 

[PontoonOwner]

It's definitely been a challenge. based on other comments in google search, i was able to set up 4 of them, the motor turns on with key but not turn off, the other two wires have current, but not sure where they attach to.

 

[ahicks]

The motor shuts off with 2 wires. One is from the mag/ignition, the other will be a ground.

 

[legalfee]