How do you know whether you have non-DSP or DSP audio system & what's the difference? | BimmerFest BMW Forum
Bmw e39 Limousine Subwoofer 6908549 DSP Nokia Bassbox Limo in Nordrhein-Westfalen - Waldbröl | Ersatz- & Reparaturteile | eBay Kleinanzeigen
![Autobahn Parts - Electrical, BMW E39 5 Series OEM Nokia HIFI Subwoofer Box #65138360789, 65138360789 Autobahn Parts - Electrical, BMW E39 5 Series OEM Nokia HIFI Subwoofer Box #65138360789, 65138360789](http://blobs.autobahnparts.com/media/Default/_Profiles/358df0d5/1aa5277c/1-171.jpg?v=636138036720000000)