Garrett SeaHunter coil onto Crossbow Classic

[TowySalmon]

I would like to use a Garrett SeaHunter 10"x14" mono coil on my Crossbow Classic. I recall that the plug on the coil has to be changed, but I have no idea which wire goes where on the new 5 pin plug.
A local electrics guy will do it for me as I am so ham fisted with a soldering iron.
Can someone help please?
Regards,
Rog

[coinfarmer]

Are all 5 pins used?

If its a mono coil, use an ohmeter to identify the coil pair on both the old and new coil.
Open up the crossbow to identify the shielding/ ground connection.