AW: “FAV” is an abbreviation for “Favorite” and refers to a configurable function key, (see device manual under “Misc Setup” p.61-63) where a specific function can be assigned via the Setup menu. The “FAV” sensor key on the device front panel supports the following direct function assignments: Camera / FM / Setup / iPod / USB / BT / NAVI / DAB+ / BT source mode / APP List / Mute / Voice / Apple Carplay / Android Auto / BT Music / AV-IN / EQ / DISP / HDMI.