How weird i live in seaford sussex just 10 miles away.I am so tempted to have nav fitted to my x5 please would you mind taking a look at a add on ebay listed by a member called navtvman he is offering to retrofit oem bmw sat nav kit 16.9 screen and mk3 drive etc for £1850 .I remember when i purchased from dealer there was two versions of nav available .another question what do you think off chandlers bmw portslade i asked about them fitting sat nav and was told NO WAY can that be done when i said there was a retro fit kit part number 65900302343 and your parts dept had quoted me a price of £1744 + vat and a suggested fitting time of 8hrs still no joy .so im searching around trying to get a idea if it can be done ,i am confident its possible but i dont feel as though im the person who will undertake this project .My x5 is 3.0d sport 2004 with 9k miles bought it from new and wish id had nav fitted any help or suggestions will be really appreciated thankyou