Jerry,
Hi. My battery failed and I replaced my own. Mine is a 2005. I bought it used last winter and the battery failed within the first week of ownership (my only problem to date). I don't know if there is a difference between years, but here is how I did mine:
Remove the (front) seat (my back seat is normally off)
Using two 10 mm wrenches, remove the negative battery cable (the black cable) from the negative battery post, avoiding contact of the tools to the positive battery post (the red cable). Always remove the negative cable first.
Using the same tools, remove the positive (red) cable from the battery positive post.
Fold both battery cables to the sides so that the cables will not interfere with the battery being taken out in a straight up motion. You may find it handy to actually tie them back to keep them out of the way until the reinstall.
The battery is held in place by a thin metal strap that has a phillips headed screw retaining the front part of the strap. Using a phillips screwdriver, remove the phillips headed screw.
Push down on the rear of the strap, allowing the hooked bottom of the strap to become free of the attaching point. It is hooked to a molded lip at the bottom rear of the battery mounting tray. Use a little care as the strap is sharp-edged.
Grasp the battery firmly and lift straight up.
Install the new battery in reverse order.
Note: Even though I am under warranty, the battery would be prorated and I expected to pay over $100 as my prorated portion. I shopped for a discount factory battery and / or an aftermarketreplacement battery through the many local dealers. I was not pleased with the prices I was given. Not being one to part with money easily, I searched further. I found the IDENTICAL gel battery at my local Batteries Plus dealer. It was only about $50 including tax. It has an unconditional 1 yr guarantee. It has been trouble free since installation..providing excellent cranking power and holds a strong charge during periods of dormancy.
Terry