Unscrew it and takeaway the back cover before
install to headrest housing or
CAUTION: make sure the screw are not long enough to go through the headrest!
If you have any doubts about this type of installation, please consult your local mobile electronics retailer. Cutting and make holes in the headrest will cause damage which is expansive to repair.
Step of install headrest housing
Setup work
remove the headrest and set it in an uncluttered work area. Take the appropriate precautions to ensure that it is not damaged during the installation.
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