Slipstream30v

A buddy and I were attempting to remove the Concert head unit this evening, and weren't being very successful. I foolishly forgot to look up pictures of what the clips looked like, and we dug around with the supplied keys for awhile to no avail. When I went to drive the car afterwards, the head unit wouldn't power up at ALL. It was still attached to the cage, and the harnesses were all still hooked up, but nothing from the unit. Is this common (perhaps a security feature)? Or did I hit a circuit board with one of the keys?

TwentyValveB5+S4

check the fuse

it's what i was told; i never tried it

1999Audi

same here.... fuse

Slipstream30v

Excellent... Not that it's a big deal now, but in case the car gets sold down the road. Thanks!