I have a Monoprice flexible keyboard that rolls up. It's USB, but I have a USB to PS/2 adapter...waterproof & all that...
So...is there like a switch box or something that you could plug the mic & TT4 into and switch back and forth or do you have to unplug one & plug in the other? Do you have a radio dedicated just for the TT4?
(On another note, my LMR400 & Palomar Engineering balun kit showed up today...c'mon KB9VR Slim Jim!!!)