BMW BM53 Part Numbers:

BMW BM53 Pin Diagram:

BMW Auxiliary Audio Input Part # 82110149390 (For E39’s without Navigation)- DIY Below in “Helpful Links”

BMW Auxiliary Audio Input Part # 82110149391 (For E39’s with Navigation)

*Note: If you have a navigation and a vehicle production date before 09/2002 then you could get either one because you have to remove the three wires from the connector anyways.

Extra Helpful links: (DIY for models without Navigation)

Check out our sister E39Source website:

BMW E65Source: