i see where you are coming from...i am at school, i dont have an atv to look at, but you should have the front box on an '06, correct? and under the lid of the front box, there is a rubber piece that can be removed. underneath should be a radiator cap and some fuses. that is one place to look. a lot of fuses are inline because of a lack of space, so you have to follow the wire to find it.
i understand that you dont want to take it to the shop, i dont blame you, but im something is going on here if the fuse blew. the reason nobody really has any ideas is this forum is one, very very small, members wise. two, a lot of people wont give suggestions unless they have a similiar machine that had a similiar problem, and then they say what they did to fix it. that is the only way this forum will grow. my suggestion is this:
1) call or stop buy a dealer and talk with the service manager. any good shop devoted to customer service should have a service manager that will be happy to spend 10-15 minutes give you advice, tips, and tricks, and what to check for...basically what you are looking for here. if they say, "just bring it in" go to or call a new dealer until you find one willing to talk with you. electrical is hard to figure out. a lot of problems are "ghost" problems. on numerous occasions our service manager would have to pull out a wire diagram of the entire atv and call a polaris dealer help number and talk to the electrical engineers who designed the machines to figure out problems. it is super complicated usually. mechanical stuff i can normally figure out, electrical problems over the internet, i havent a clue where to tell you to start really.
2)it good to hear that you are interested in doing as much of your own work as possible. cant say i blame you. with that, i think it would be in your best interest to pick up a service manual. the OEM one is about $60-$70 but you can find aftermarket manuals like a clymer or haynes and they do just the same. you get diagrams, pictures, troubleshooting help, and its all in plain english. i have supplied links to both manual books.
Haynes Manual
Clymer Manual
i do hope that you talk to a dealer and see what they say. and please keep this thread updated if you do get this figured all out, so othe people will learn from this problem, decide to sign up here, share their problems, ect....and the forum will continue to grow and become more informative as time goes on.
i do have a personal interest in this. so if you need to get my attention either post up here or PM me. when you responded, this thread show up bold and on top of the list when i clicked active topics, thats why you got a response from me....before this thread was buried on the list of threads.
good luck....hope to hear some good news soon. im around if i can help at all