Well what's a log without some minor failures. It would seem I once again tried to get to fancy and not follow the old KISS rule (Keep it simple stupid).. 

The area marked by a red circle is supposed to be a passthrough that allows a wire to go from one side of the speaker to the other so both wires have a common exit point from the speaker.

There are two problems with this, three? The printer that I'm using is an expensive hunk of crap.. don't get me wrong it prints rather well, but its closed source locked out and you don't have the option to allow support material ware you want it.. only ware it wants it. So even though this part spent 16 hours in a bath designed to remove the support material, its not all gone. 

Two the hole is only 1.5mm in diameter, so its a little on the small side to begin with, I could just as easily created a raceway for the wire to sit in, ultimately that's what I will end up doing. This is one of those "oh that's a great idea" in theory, only to realize nope.. that's not going to work.

However the parts seem to align well. 

I'll either modify the existing horn I have or print another with the proper raceway for the wire. Hoping to have some time this weekend to put the core together.