I have a 2000 X5 with, what I think is, a Mk II CD based system. It's a radio/casette/nav all combined with a small screen and the option 6 CD changer. I'd really like to upgrade it since I intend to keep my X5 for a few more years but my head is spinning after searching the forum for "nav, upgrade, monitor, etc." since I don't understand all the acronyms and arrebreviations.

Can any of you give me in plain English, a description of the parts and the source(s) that are required to accomplish the upgrade? I'd like a larger monitor screen, the ability to view maps in 3D and the ability to integrate an ipod would be a definate plus. Is it really necessary to change any wiring harnesses or do I need any adapters?

Following is a response from an ebay vendow that sells the larger monitors at a reasonable price:

It's a simple plug and play swap for your older monitor, you just take out the old monitor and put in this widescreen unit and then buy a $40 frame that goesaround the new monitor, that's it.

and this is a response I received from a vendor but at $2,800.00 to start (whatever start means...) it seems a little pricey:

"It will be about $2800 to start. All pieces are needed at once to get nav and they all work together. You would put in a retrofit harness plug in the display, nav computer and radio module in the rear compartment. All those major parts are required for it to function"

I'm not in a position to spend $2,800 at once so I may have to do it part by part if possible. There are monitors and DVD drives listed on ebay at fairly reasonable prices but I haven't seen a "radio module" listed.

Thanks - your help would be greatly appreciated!