Faulty Horn And Heated Seat On 01 Z71

I have an 01 Z71 w/ 77000 and the horn acts a little crazy sometimes. It acts like it is cold natured. Sometimes it works,sometimes it gets stuck, other times it doesnt work at all.

Also my heated seat went out on the drivers side. Looked for a fuse and I could not locate one.

If anyone else has had these problems please help me.

Thanks Matt