People don't change cars nearly as often as they upgrade
handsets, and even if you're not happy with your car's stereo
head unit, it may not be practical simply to change it for a new
one.  Increasingly, audio and other in-car functionality is
built in and essentially non-upgradeable. At least not in the
sense of ripping out the head unit and banging in a new one.  On
the other hand, a lot of add-on kit from aftermarket
manufacturers can be downright messy. Added cables, patchy
reliability, the usual drill.  Pure Highway 300Di  Pure Highway
300Di: The in-car conundrum  In theory, the Pure Highway 300Di
offers a solution. You get DAB radio, iPod support and USB
connectivity in a single, neatly integrated package. No wires,
no mess. The fully fitted price from Halfords is currently £180.
It's certainly a slick-looking package at a reasonable price.
And brief acquaintence will convince you it's worth considering.
But living with this kind of gadget long term often throws up a
few niggles. So what's six months w