Just got my xA!

I just got my '06 xA today. I love it so far. The ride is great, its got all kinds of little extras, and I can park just about anywhere I please. I know its made by Toyota and all so I shouldnt worry, but Im just wondering if anyones ever had like any serious mechanical problems with theirs. I looked at the engine and it just looked so fragile (Ive only owned MKIII Toyota Supras and a Camaro up til now).

I just have problems with the stereo changing channels on its own