Other than them scratching my paint on the brand new xB and trying to hide it by sending it down the street for a crappy paint job, the place seemed to do a good job on my install. I have a question about the steering wheel controller, though, and can't ask them since we're not on speaking terms. The up and down arrows on my Scion wheel change the radio stations on AM/FM/XM to the next (or previous) preset like you'd expect. However, shouldn't they also change tracks on CD and iPod, or am I missing something?

No. If it is set to preset change you get no track skip. If it is set to station skip you do get track skip. This is just one of Pioneer's genius decisions in design flaw.