Hallo, this is my first post here...
I've a simply question: I have a BMW 5 series E39 Touring (525d) produced in Dec2002. It has a Business radio (no nav) with a CD in console and CD Charger (Alpine + interface) in the box rear. I want to add a USB port for using a pen drive or a 2.5" inch HD for listening more MP3. Is any possibility to do this without buying the Gateway Dension (300 or 400)???
Thanks,
Tobia from Italy...