Had the battery off for a while, put it back on yesterday fully charged and my clifford concept 300 won't do anything, the fobs do nothing, putting in valet mode does nothing but give me a lighted LED and I can't press the button to turn off the immobiliser...any ideas?

probably either be the remotes need reprograming, or the receiver has gone faulty (common on the c300)

if it was the remotes then putting it in valet mode would disarm the immobiliser so can't see it being receiver/remotes

sorry I didnt get that from your post. dont know then without having a look

you wouldn't happen to know if the clifford fuses would be located right next to the brain in a little black box with funny screws would ya?

They are not fuses, that is a connector block so the alarm can be removed without having to cut wires