Alpine MF2199 Radio Codes
To locate your Alpine serial number you will need to remove the radio and locate the serial it will appear on the radios label or be engraved into the top or the side of the casing. For example, it will say Model No. MF2199.
Underneath the sticker, the serial number will be AL2199 W 10 44444
There are online guides and video tutorials on YouTube that can help with the removal of the radio.