In my coach, the Jensen operates all three sets of speakers (main living area, bedroom and outside speakers). There are three buttons on the face of the Jensen unit with the letter "A", "B" and "C". With the unit turned on, one button turns on/off the living area, one button turns on/off the bedroom and the 3rd turns on/off the outside speakers. You have to experiment with which button controls which set of speakers. You can also google Jensen with the model radio unit you have and find the directions which also tell you how to set the radio for the correct time display.
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