Hi I'm wanting to play this 18 soooo bad but i don't know how to wire it up in the box.

The system is ready to play it

I already have a 15 hittin off the system. I wired this up prolly back in 2003

I wanna get this Maelstrom mk1 (Adire Audio) moving now

This would be off a 250W Parts Express plate amp that's 4 ohm.

The 18 is dual voice coil. There's two wire push-button terminals on each side.
Can i get a link to a schematic for this?