howdy people, here is one for you, searching for either an active high or active low COR signal on this repeater. the one on the DB15 accessory connection at pin 15 is an active low, but when you connect to it it kills the audio passing thriought the repeater. any thoughts ? i have located several spots inside on the tx / rx and main board but they all do the same thing, when you connect to them they stop the audio from passing out of the xmitter.