Sirius XM RAdio DH3 User Manual page 11

Home Installation
2. Orient and place the Radio Dock Adapter that you selected into the
Home Dock . Be sure the adapter is centered, and is seated all the way
down into the dock .
3. Once the adapter is seated correctly in the Home Dock, gently press
the top of the adapter against the dock with your finger until it clicks
into place . The Radio Dock Adapter is now installed .
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