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PROGRAMMING SWC
Turn on the ignition•
The LED will begin to blink rapidly•
Turn on the aftermarket radio•
Press volume up until radio responses•
TESTING THE GMLAN29-100
Turn the ignition on, and then turn the aftermarket radio on. •
Push the Onstar button, the radio should turn off (radio will mute if mute wire is •
connected) and you should hear Onstar. Push the Onstar cancel button and the radio
should come back on.
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