kenrowe

I have a 2005 (55) BMW 130i M Sport and I installed a new CD changer and added it to the fiber loop in the car but it is not recognised and BMW said it would need a to reprogram the system and will cost me upto £600 to do ouch... Does anyone know how to add the changer, on my Jaguar you entered a code that took you to the system option and you added the unit here and reset the system. regards Ken