Hi again Scott,

I think what you are trying to say is that you wish to apply Tyros voices within the Technics styles either on top of or instead of the inbuilt Technics voices. I am afraid that I can't answer that one as it is not something I have ever tried to do.
I have only had the current keyboards since December and have not yet got further than linking them and combining the registration voices for fuller sounds. I think you would need to talk to a real expert like Alex to find whether what you wish to do is possible.
I do not think that you can buy a midi lead with an integral switch. I have simply broken into the lead, cut the wire connecting the two centre pins and inserted an extra piece of cable passing through a simple on-off switch. That does the trick.

All the best
Trevor