Here are some things to help you if you are going to be installing Seymour Duncan Pickups (or any pickups really). I do skip over the Soldering because my skills aren't the greatest (more of my confidence level isn't really there). These steps should be helpful in identifying what you have and what you can do.
I understand if you don't find this helpful if you have installed pickups before. This is more geared towards someone who hasn't really installed pickups before.