I'd like to use FSK-D. I've read over the options and would like to use a USB to ACC cable. The ACC socket on the K3s is being used by the KPA/KAT combo. Is there an off-the-shelf kit of cables/interrupters I can get that would be plug-n-play for FSK-D on a K3s + KAT + KPA? 73, Kev N4TT