Re: Need help with an 05!
Both are pretty common wear and tear items.
You can certainly remove the wheel and have a place re-wrap it. Many people take the opportunity to upgrade their steering wheel to a wood wrapped one. You can get them online for a good price, and swapping them out is fairly straight forward (search the forum and you'll find some good writeups of people doing this).
As to the tear in the seat, I fixed mine with a 3M leather upholstery repair kit. It took a few attempts at mixing the stuff to get the color correct, and it wasn't the easiest stuff to work with, but it got the job done. If you have a larger tear and/or hole, a cover or trip to auto upholstery shop may be the way to go.