Hi Xeon,<br> <br> Alpine makes a very good nav unit, and I have heard good things about Pioneer. HarmonKardon is going to start selling a unit next month which is produced by the Becker subsidiary. I think there is a post about it in the audio forum at mbworld. It is already selling in Europe. Garmin makes a very good dash top unit. This unit can be swapped between cars.<br> <br> I think you will lose steering wheel button functions with all the indash units, but you might get lucky with the HK/Becker unit.