How do I put new banana connector on with other wires showing up after cutting ?

SPEAKER Cable may have solid or stranded wire, and there could be a ground wire or woven wire sheath for the cable included. Generally, when multiple wires are used they join somewhere behind the ends of the cable so you only see a twisted pair when you change the connector. You may have cut the cable back too far.  I suggest you go to Audioquest.com and look up the differences in how speaker cables are assembled. You may even discover the reason your particular cable has the wire it has.  

It is indeed interconnect cable, (could be some weird-ass Monster Cable speaker cable.  They did some bizarre stuff) but speaker ends. If you are near Northern Colorado, I’d be more than happy to help. We can use that wire, but would need to some modifying. The former owner twisted all the wires inside together and soldered a spade connector on it.

You could have bought some "spade to banana" adapters and not had to cut the spades off, but too late now.

I would suggest getting the correct wire.

+1 mofimadness