Retrofit Navigation System Professional (SA 609) BMW 5 Series (E60, E61)

I have a 2005 BMW 525 but do not have any navigation on my iDrive. How much would it coist BMW to update iDrive with this system?

BMW 5 Series E39 (1997-2003) Bluetooth Retrofit Kits … BMW Bluetooth Systems are for E39s either with Navigation or without Navigation. .

BMW Bluetooth systems. … BMW Bluetooth E38 E39 E46 X5 Navigation Sirius Hands-free … All New body Style BMWs. New Body Style BMW 3, 5, 6 Series

BMW 3 Series DVD Navigation System Retrofit with On Board Monitor Installation Instructions … BMW 3 amp 5 Series. Service and Repair Manual. A K Legg.

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