Wait, what do you mean the battery's dead?

[declantg]

First thing to check is output from the alternator. Grab a multimeter and put it across the battery. With the engine off you should be getting about 12v and with the engine running you should be getting about 14.4v.
Seems odd that your clock and gauge stay lit. Does anything else stay on like the radio and does the battery light stay on the dash?

The battery light is on when it is switched off yeah, will grab a multimeter in a bit