I just picked up a PSR-500 and am able to write to the scanner from Butel ARC500 using my Icom OPC-478UC no problem. Reading the scanner back into the software shows the progress on the radio display but nothing loads on the software. Win500 and PSRedit show a timeout error . I’m not opposed to getting the correct GRE cable but hoping there is a minor adjustment I can do to use the Icom . Thanks