Despite the posted diagram i'm still not sure how to wire up the unmodified Baofeng mic to the Bitx.
the speaker connections seem obvious, with ground on the sleeve of 2.5mm and other speaker connection to tip.
the mic + connection seems fairly obvious too , on the ring of the 3.5mm.
But where are the mic - and PTT wires from the Bitx connected, and do they all use the same ground?
Which Bitx wire connects to the tip of the 3.5mm (v+) ?