Audio Systems: pt cruiser radio problems, rf modulator, clock button

Question
I recently wired in a rf modulator into the stock radio on my 02 pt cruiser. after installation, the radio stopped working. there is power going to the stereo, because if i press the clock button, the clock comes on for five seconds, then turns off, also the eject function still works. did i fry my radio?

Answer
You may have just blow a fuse somewhere. Where did you wire the power for the modulator and how?

If it were an aftermarket radio you were talking about I would say it's the switched power wire has become disconnected but for a stock system there could be a similar wire.