Hello ! I made a small solotuion for the datacable, I use injection needles ( hypodermic needle) with a diameter of 0.9 mm, I cut the needlepoint and so you are able to put it over the pins of the build in jack.
But it is not the best transportable way ... I'm angry about Icom, that there is noch adaptercable to use Dataconnection AND mic/earphone jack at the same time. I think about buy a second speaker mic adapter and disassembling the Connector, caus als 12 Pins are avaiable. Does someone did before ? If someone here found a soloution, I will also buy some. Vy 73 DD1GV / Vajk