I know some of you guys have Priuses and might know the answers.

My Dad just bought a 2010 GenIII Prius IV

He'd like to be able to:

Turn off the beeping while in reverse
bypass the "OK" screen on the Nav
Enter navigation addresses while in motion
Any other spiffy hacks

I called Coastal Electronics and they don't make a Lockpick for the GenIII Prius yet. I was wondering if you guys know of any other options for getting rid of these annoyances.