tach doesn't work

like the title says the tach doesn't work... does anyone have an idea why. could not be hooked up? and the radio doesn't work either, I checked all the fuses and there good. I've never actually been able to use it before but it seems like the buttons aren't hitting anything they feel really soft and I've never had this trouble before on any other car. it shows the time and a few other display icons but doesn't play or anything. i don't know never had a ford before. my friends got a 97 probe and all the work on his car was a pain in the ass. axles, timing belt, etc... thanks for your time