Strange startup question: no matter what source I leave the unit on (XM, BT audio, AM/FM) when I turn my vehicle off (even OFF with no source playing) the following morning/later on when I turn the vehicle on it invariably waits about 10 seconds to play the last source and then for no reason switches to the iPod. Not really understanding why this is happening, anyone else have this happen? Solutions/fixes? Thanks!

it takes the ipod more time to log onto the avic and the avic thinks you just plugged it in so it start to play it

That's pretty much deadon. The 10 second delay (or sometimes more) is normal for these units. And the iPod is completely turning off (not just pausing). So when it gets power again, the iPod begins it's boot-up, then eventually resumes audio. The 920Bt thinks you just plugged the iPod in and switches to it automatically. Does it on just about all the Pioneer's currently out there (Even the cheap single-dins).