Wayne,
My husband has a Garmin iQue PDA with nav, but I've always hated the thing. I thought that I just wasn't a "nav" girl until he got his Prius with the nav built in and I fell in love with it.

The main drawback with the PDA is the small screen (I found that I was having to take too much attention from my driving to follow it.) That's why I'm looking at the Pioneer, since it has a screen that is about 6.5 inches, large enough to follow the directions with just a glance.

I'm just concerned that there might be a problem installing it into a hybrid car, since I would think that a system like that might use more power and/or produce more heat than the stock cd player.

BTW, why did your Insight get retired?