Put factory stereo back in, won't turn on - Please help

[kloan]

I'm selling my car this week and the buyer has asked me to put the factory stereo back in. Should be a simple swap, but nooooooooo Mazda in their infinite wisdom has done something to this deck in case it's been removed and now the darn thing won't turn on at all. No lights come on, not on the LCD display or the rest of the control unit.

I've tried disconnecting the battery and removing both fuses (under the hood and under the dash) but nothing is working.

Is there some sort of secret combination of buttons I should be aware of to bring this POS back to life? The buyer is picking the car up this week, so I really need to get it working asap.

Any help would be appreciated! :)

[kloan]

Never mind. This one was my fault. Faceplate wasn't completely plugged into the unit because one of the metal tabs was bent forward slightly. All's good now.. working as it should.