I know this has been discussed before when it was the 7120 vs the Z2. Does anyone have opinions on the Z3 vs. the 8120? The Z3 has 30 GB HDD so navigation no need to change discs to use nav, but the 8120 uses Garmin.
The idea of speech recognition on the Z3 for commands is a nice idea - but does anyone use it?

I've never been a fan of the Pioneer stuff. Too much BS with them. I prefer the Kenwood.

i've used them both and like the kenwood better