random electrical outages

A couple of problems keep coming around from time to time.
1) My headlights will only beam bright lights whether its on bright or normal.
2) My dash lights will go out for a week or so.
3)My radio used to go out every now and then, but now its dead.

Would you consider this a typical shortage problem or is there anything specific I should be keying in on? Also, if I replace the wiring harness do you think that will solve the problem?

It may be a harness problem. Check the diagrams to see if they share a common ground point. The only way to find the problem is to get a multimeter and run the wires.