I have used the tom tom software and it is OK, no more than that, the software is alright but the hassle of having wires and cradles etc. just got on my nerves.
I had o.e.m nav in my BMW, and again in the Merc, and just changed over to a used audi which didn't have nav, so I thought it would give me an excuse to get a new pda with sat nav on it. But as I said above, the cables, cradle and most important of all
lack of TMC means I have just bought the Audi Navigation Plus off ebay and have got rid of the PDA.
TMC is a godsend, it tells you of traffic problems ahead and will give you the length of tail backs etc. and re route you if you desire. Pricless !!
If I wasn't bothered about keeping the Original look of the car I would have gone with teh new Pioneer all in one unit, the AVIC-X1.
It uses a standard Din size head unit with the navigation stuff built in, so no boxes to fit in the boot, you can buy an adapter to make the install painless, and all you would need to do is add the gps antenna.
There is memory built in so you load your destination from the Europe DVD and it will save the route leaving the drive free to play cds or dvds.
http://caraudiosecurity.com/catalog/...oducts_id+2444
Dabs are also doing it for around the same price but with buy now pay in 12 months.
Maybe a bit more than he wanted to spend? but probably the best out there, plus if he is driving with the family he could add a monitor in the rear for around £200 and let the kids watch a dvd while he listens to the radio.