I am responding with the link below only to show you that such services are offered, and the listed price. I am not associated with this company, nor have I used their services. I hope this helps your shopping decision!
Quote:
If your vehicle did not come equipped with OEM Navigation System from factory, but you would like to have it installed, then this retrofit is right for you.
Source:
http://bimmerretrofit.com/store/inde...&product_id=61