Im guessing the clock is not workin on the radio too?
If the fuse blew i just changed one out yesterday and got the cig lighter power, and radio/cd player powered up again!
Get a flashlight, and a pair of tweezers!
Under the divers side dash, towards the fender (left side) you will see alot of wires shooting into adapters!
In the middle of then you will see a black plastic fuse box cover, it is shaped like a rectangle! on the part closest to you on top and botom you will see little button clips, squeze them both and pull of the fuse box cover! From there you should see fuses, red, yellow, clear, blue maybe? there are a few that say 25 on them, should be clear or yellowish, use the flashlight to reflect in it so you can see inside the fuse and see if it is broken!
see link to know what a broken fuse looks like
pull it out with tweezers, if it is blown ( remember what fuse slot it is)
On your fuse box, there are a few extra fuses with a 25 fuse in it, use it and put it in the slot where your took out the blown one!
Your done, put your key in and try your radio out!
Good luck it is a easy fix.