Audiovox LCMR6CT - Manual (Page 14)

Maintenance
Though your Rearview mirror requires little care, you can still maintain
its condition and performance by following the procedures below.
Keep your system away from excessive moisture, extreme heat
or cold, and magnetic fields.
Keep liquids away from the display and mirror.
To avoid damage, do not place external devices or other objects
on the top of the mirror.
Occasionally wipe the rearview mirror set with a soft, damp
cloth.
Occasionally clean the surface of the mirror with a soft cloth
moistened with water or window cleaner.
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