What's going on guys. I just registered but I've used this site many times and this is a great site. I just brought a Z2 off a friend of mine and wondering what can I do to make it better, such as updated maps, HD upgrade (if possible) and hacks/mods. I was also reading that these units tend to freeze up. I appreciate all your input, thanks.

You can a larger hard drive, but it can only be used for music storage.

You can add a slightly faster hard drive, but not very noticable.

You can do the 2 wire bypass for full functionality while driving.

Updated maps, firmware, POI, CDDB, and XM Channel logos.

The freezing issue is fixed with a firmware upgrade, or complete system upgrade that included maps, firmware, and POI.

I did the 2 wire bypass which should allow you to use all the icons while driving but mine isnt doing that and says that its connected inproperly when I start it up, did I do it correctly? How do I updated the maps and firmware?

Try pressing the small reset button on the front of the unit. If this does not fix it, then you did not do the 2 wirebypass corretly. Check the 2nd wire (the one you move to a new location in the harness).

You can update the maps and firmware:

1. Buy the Pioneer update

2. See the hacks section for DIY

3. click the link in my sig below.