Hi there 
	I have just acquired a 2002 S Type and the only thing I have is, that it doesn't have the SatNav header unit but the old in car phone one. 
	Now my question is; would it be worth getting a header unit (off eBay for example) for around £80 and then fitting it/getting it fitted. Or stick to what I have and get a TomTom or similar. 
	I can definitely see the advantages of getting a built in unit as long as I can get up to date mapping info - as it seems to only be available up to around 2012. It will look better and certainly compliment the car. Also, if I am going to replace the header is it worth upgrading the radio cd part to one that will connect to my phone (Bluetooth) and allow me a USB to plug in my MP3.  
	Finally, is replacing these units relatively pain free (I am a computer geek not a mechanic so assume minimal knowledge but an ability to follow youtube guides etc) or are they a job for someone who knows their way around jaguar stereo and entertainment equipment  
	Many thanks for any help or advice you may feel able to give :)
 
	Tim