Bluetooth in a non bluetooth 220i

Dear all,

I am the happy owner of a 220i with these options:

11 1J11 BMW 220I COUPé
PRICE FOR DIPLOMATS
12 0668 BLACK
13 BDAT CLOTH ’MOVE’ ANTHRACITE
14 02PA LOCKING WHEEL BOLTS
14 02VB TYRE PRESSURE MONITOR
14 0216 SERVOTRONIC
14 0249 MULTIFUNCTION FOR STEERING WHEEL
14 0255 SPORT LEATHER STEERING WHEEL
14 0320 MODEL DESIGNATION, DELETION
14 0423 FLOOR MATS IN VELOUR
14 0428 WARNING TRIANGLE
14 05DC REAR−SEAT HEADRESTS, FOLDING
14 0502 HEADLIGHT WASHER SYSTEM
14 0507 PARK DISTANCE CONTROL (PDC)
14 0520 FOG LIGHTS
14 0522 XENON LIGHT
14 0544 CRUISE CONTROL WITH BRAKING FUNCTION
14 08KA OIL−MAINTENANCE INTERVAL 24 MONTHS/30,000 KM
14 08S3 AUTOMATIC LOCK WHEN DRIVING AWAY
14 0855 LANGUAGE VERSION ITALIAN
14 0884 ITALIAN / ON−BOARD DOCUMENTATION


So as you can see no Bluetooth option. Now, assuming I want to retrofit a bluetooth option do you know if it is a hardware job (a guide I can refer to?) or if I just need to code in the option? It the latter case I should be fine.

Thanks guys!