To get a "good" HU? I've always stuck with pioneer, but am open to other suggestions. Been trying to do some "research", but from the looks of it, all the <$200 are pretty much the same, with only differences being usb/BT/preamp etc. Besides the ins and outs, what should I look for? Really all I think I'll need is 2 outs, and usb. Is spending more than $200 on a single din worth anything?