Thanks for answer. But that is not exactly my challenge. It is just to combine the IC-706/703 set-up on the RRC 1258 at the controller side with the MicroPC-Client set-up on COM2 that bothers me. As a ordinary, simple setup with 2x1258 it functions well, but when I begin adding cables for an additional CI-V-set up I get into trouble. It is certainly ok to set up the speaker connection, and also the connection between COM2 and CI-V-input on the radio. So far the ordinary set-up is working fine. But then what about the MIC? When I try to wire to the MIC on the rear of the radio with a splitter (not decoupling the wire for the front panel contact), I run into trouble. I should like to run the radio without needing to do any rewiring at the radio site, just changing between remote control of my IC-703 (by front panel or MicroPC-client) just by use of the computer (reprogramming the box at the radio site). Is that possible, or do I have to change the wiring at the radio site when changing operating mode at the controller side?
73 de Geir, LA6BNA