Can someone tell me how I can reset the Z1. I have numerous bluetooth cellphones stored that I don't have anymore and can't get rid of them....So I figured I'll just reset the unit.

Press and hold the map button while its booting up. Then follow the instructions

When you turn on the unit and the pioneer splash screen comes up, keep holding the map button cuse it takes long time to go to that reset menu. You will hear a beep then u knw its going to the reset screen.