My advice is to get one with a volume control..and turn it down..can't abide the constant nagging!!
It only needs a quick scan like the rest of the dash & as most can't describe accurately, having a visual saves a lot of stress.
Just had a double din audio setup installed in my lovebus that includes a built in twatnav. Not sure who's software this is, but I've got a very clever purple straight line between me and the destination so that even if I miss an instruction I always know if I'm heading in the right direction.
I think they're marvellous bits of kit & wouldn't want to be without one now. For leisure time bimbling I still enjoy poring over maps with a cuppa, though. Can't let technology take over completely, can we..?
