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I just received my 2720 last week and along with it came the bike power cord from Garmin. It includes a 2.5 mm audio jack that I hoped to use with the headset I use for my Sirius radio. I got a simple mixer with one stereo 3.5mm and one mono 3.5mm input and a single stero 3.5mm output. I hooked the sirius through this and it works fine. I got a mono patch cord and a 3.5 to 2.5mm adapter and hooked the GPS audio to the mono input on the mixer. I can't hear anything but a hum from the GPS.
I next tried hooking the headset directly to the Garmin cable without the mixer. Same deal - no audio from the GPS. It does work fine with the Garmin 12v car/speaker so I know the audio is working from the GPS.
I searched for hours on the old sight and found lots of info about ground loops but those seemed specific to one or another intercom system. I just want direct audio out of the Garmin into my headset.
Thanks,
Todd
I next tried hooking the headset directly to the Garmin cable without the mixer. Same deal - no audio from the GPS. It does work fine with the Garmin 12v car/speaker so I know the audio is working from the GPS.
I searched for hours on the old sight and found lots of info about ground loops but those seemed specific to one or another intercom system. I just want direct audio out of the Garmin into my headset.
Thanks,
Todd