I have a 1985 jeep cherokee cheif and ond day i was driveing it then the radio went out and then the a/c panel stopped working then they both went back on. then I shut if off when i got home then when i started it again I had no turn signals. So I turned it off and checked fuses they were all good. So then I tried starting it again and when I tried to turn the key it was real hard and felt like it was broken could that be the problem? or could it be the ignition switch or both?