Horn going off and lights flashing... The truck won't start we had to take battery cable off terminal to make it quit

My horn died so I'm trying to replace it but I can't locate it

2006 Ranger cruise control won't set speed. The light cone on when the on button is pressed but the set speed button doesn't work. Also, the horn works intermittently. I'm thinking it's the clock spring in the steering wheel. How can I confirm this and how hard is it to replace? Thanks.

My AC blower and horn stopped working. The horn will not blow and although my AC is getting cold, the blower does not work. They both stopped working at the same time,

I gave someone a jump the other day. When I got home I must have left something on. I'm not sure. I was in the house for 15 minutes and I came out ready to go somewhere and it barely even clicked. Got a new battery today and now it won't even make a sound. None of the lights inside come on. The horn doesn't even work. It is completely dead. I checked the fuses and they all looked good. How do you check the relays to see if they are bad or good.