The Nissan Path

Just bought a 2006, beautiful truck.

First thing I want to address is fixing the drivers seat bottom.

It has a wore hole on the side of it.

Do they sell a replacement leather seat bottom?

I have done some searching and have not found one for a 2006 yet.

They sell the entire bottom cushion with the leather upholstery...but at a price that you'll be wanting to be sitting down before you hear it! Best bet would be to find a good one in a salvage yard unless you have a really good auto upholstery guy that can make a new one to match it. You'll likely have to but the entire seat assembly, if you go the used route, but it will be a fraction of the cost. Try Car-part.com.

Also you may want to check if your town has a automotive upholstery shop.
Most bigger cities do.
depending on the nature of the tear they might be able to fix it for a reasonable price.. or even re-stuff your seat if its lost its firmness