Originally posted by MrEd:
Pose,
You ought to buy up a bunch, convert them, and sell them for a few bucks profit ...
The Z5500-1/4 
MrEd:
I did both systems with phone plugs and 2 sets of cables with a couple spare cables.
when finishing all that soldering I quit never to solder again
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not a bad Idea for someone else though.....pose