trying to link a tk 880 with ads sr1 simpex rptr. Have been told the com 0 (mic port) may not have enough logic to interface but unsure at present. Would like to avoid kct 19 install if at all possible. has any one tried anything similar with an 880? could be im making a mistake in my cable fab. getting audio in, recording and playing back but not getting audio out through the 880 and ptt is not kicking on. should make note that at present im using rj45 radio to rj45 ads sr1. May be something im missing in the programming but unable to see where im going wrong. Any help at all gratly appreciated.