[steves300c]

I'm really liking this car very much, but have 2 little problems with it.
The first is the rain sensing wipers. The display is showing that it is on, however, yesterday when driving in to work, it started to pour. The wipers did not come on automatically? I turned them on manually to delay, and they would wipe, then delay, then wipe two times simultaneously, then delay, etc. Has anyone else noticed this? Is the wiper stalk supposed to be in the first delay position at all times or is it supposed to sense the rain even with the manual stalk off?
The other is if the car sits in the sun all day(gets hot inside), the dial for the volume on the stereo won't work until the inside temp cools down(the volume control on the wheel works fine though).
Any ideas on what's up here?
Thanks!
Steve