First look in your area for a starter / generator rebuilder. All larger cities have them. The guys at any auto parts store will know if there's one near you. I just put a brush assembly in one of my Grand Caravans last summer. The part cost nine bucks.
We also have a farm supply / hardware store chain that has starter and generator rebuild kits. I just checked my favorite online source and the brushes weren't listed. I think an '06 might be too new. From the picture of the alternator for your car, it looks like a Nippensenso unit. They have a stamped steel cover to remove, then three small bolts hold the brush assembly on.
You can also do a search online for "alternator parts". There's a lot of places that sell them. I sell all kinds of brushes and starter repair parts, along with selling and repairing Chrysler car radios, at the nation's second largest old car show swap meet about 50 miles from my home.
The reason these parts aren't available at auto parts stores is most do-it-yourselfers wouldn't know how to diagnose or perform this repair, and professionals don't repair customers' cars this way. It takes extra time and there's the chance of doing something wrong. Customers usually get more angry at having to come back a second time than they do if you sell them a complete rebuilt generator at a much higher cost. Labor cost is less; parts cost is higher, so it evens out, and the chance of something going wrong is much less. Also, a rebuilt alternator comes with a warranty. For those two reasons, brush assemblies aren't real popular so the auto parts stores don't stock them.
You can also try ordering the assembly from the dealer. I doubt they will have it in stock for the same reasons I just mentioned. Years ago I often bought replacement brushes with the insulating holders and washers for the '70s and '80s Chrysler alternators, from the dealer for around five bucks for the whole kit that included more parts than were needed. Today you can buy just the pair of those brushes, without the extras, for about three bucks from those rebuilder companies.
I have a web site too geared toward students, instructors, and do-it-yourselfers with a page about this alternator and how to replace the brush assembly. We aren't supposed to post external links here but if you are able to send me a private message, I can give you the name of the web site if you think it will help.
Thursday, February 13th, 2014 AT 9:51 PM