Audiovox XM XpressRCi XDRC2 User Manual page 46

Vehicle Installation
11 The audio level output of the Xpress
as necessary to match the audio levels of other sources in your vehicle .
Refer to "Set Audio Level" on page 97 .
If the signal reception is good, but there is no audio when tuned to channel 1, be
sure the vehicle's stereo system is set to the correct source, i .e ., cassette source
(step 9) . Also be sure that the FM Transmitter is turned Off (step 7), and that the
audio level is set high enough to be heard (step 11) . Refer to "Troubleshooting" on
page 110 for additional help .
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RC can be increased or decreased