[App_rpt] Hot TX audio

Hi all, Just fishing for ideas... I have my app_rpt node connected to a radio right now via the mic input, and the audio is HOT. Using the 'radio tune txvoice' command, I get no audioble ouput when using a number below 27, but anything over 50 or so drives the radio way way wide in deviation and starts clipping. I'm assuming that the parameter here is adjusting the volume on the USB sound fob, and it's just too much for the rig... Thinking a resistor in the TX audio line would do it, any suggested for a size? :) Then I can run over to Radio Shack and pay them $3.95 for an $0.18 resistor. LoL Steve