My truck won't start when turning key lights come on dashboard and clicking from fuse box inside

What is your question?

So in the past week my truck has failed to start 3-4 times when turning key. The dash lights come on and I hear a rapid clicking noise from fuse box inside. The first time I recall it happening I started the truck out front of my house took off right away and came around back to garage. Went to start truck not even 5 minutes later and nothing dead dash lights came on but mo clicking sound that time. I took battery to have it checked and it read 12.4 v it seemed to charge rapidly. Anyway when hooked battery back up it started. Couple days later I went to start first thing in morning and same thing but this time heard the rapid clicking noise. So I went to jump it with my Yukon it took a good 5 minutes and multiple turns of the keyit finally started. I replaced battery with new and it still happened It's been on cold days also found blown 30amp fuse trailer tow battery saver fuse. Also was a couple of the wrong fuses in places. Truck has 297000 motor rebuilt roughly 100000 miles ago

What makes this problem better or worse?

Seems to be when cold

How long has your 1999 Ford F-150 had this problem?

3-4 occasions in the past week