Hello Everyone,
I'm a new X5 owner, just got a 04 - 3.0 supposely built in July 04.
with Nav and Cd changer -DSP.
I have what looks to be a Blue tooth antenna (part #8450 6928461) mounted on top of the rack that holds the Nav DVD and CD changer.

Is this a BT antenna or something else? if this is not a BT antenna,and i Don't have BT. Is it better to go with a OEM retrokit/ A BMW kits or someone else kit like a Plain Talk kit? Who's OEM Retro kit would you use?

How much work is it to install a OEM/retro type Kit?

Thank you for your help and answers

Jim