Here are the removal procedures, installation is in reverse order.
REARVIEW MIRROR REPLACEMENT
Special Tools Required
KTC trim tool set SOJATP2014 *
* Available through the American Honda Tool and Equipment Program; call 888-424-6857
Use the appropriate tool from the KTC trim tool set to avoid damage when prying components.
1. Using the appropriate tool from the KTC trim tool set, carefully remove the headliner cap (A) by releasing the hooks (B) from the headliner (C), and remove the cap through the slit (D) on it from the rearview mirror stay (E). Take care not to scratch the cap and headliner.
2. Remove the screws, then remove the rearview mirror (A).
3. Install the rearview mirror in the reverse order of removal.