Just bought a Z1 from a guy on craigslist. Hooked it up in my BMW X5 and I am not getting any action. No lights, nothing. It won't turn on! I have everything installed. I checked the pinouts of the new aftermarket harness and everything is the same. I don't have the antenna adapter yet tho...could this be my problem? Any help would be greatly appreciated.

The unit will power up if you provide 12V+ to the red and yellow leads, and 12v- to the black lead. You may check any inline fuses and verify the connections for the red/yellow/black wires.

most likely it's a fuse. a lot of times its not even a typical fuse, so check them all. i've done it 3 times i think haha