I'm New to This Forum and Toyota... Satelite Radio?

Hi everyone.

I recently picked up my first Tacoma, a 2009 Access Cab SR5 V6 6spd. It's my first midsize truck and my first "foreign" truck. I've always had a crappy old "American" full size pickup as a second vehicle and a daily toy of some sort. Well, I junked the beast and I traded my 2009 Jeep Wrangler Rubicon in for this. I love this truck, and it blows away anything else I had prior. It gets better mileage than the Jeep and it's a superior ride for my commute. Great work and play balance. Anyway, I have a question. I'm guessing it's already been answered too, but I can't find the thread. Here's goes...

My truck has the factory head unit and the factory shark fin on the roof, but it also has the Sirius XM bracket poping out of the center dash and has the Sirius XM wired magnetic satellite antenna on the roof next to the fin. This leads me to guess that either the previous owner never bothered to get the truck with factory satellite radio, or for some reason he replaced it with the Sirius XM gear. I like a clean dash without bolt-ons. Is it possible to somehow revert back, and get Sirius XM through the factory head unit so that I can remove the annoying extra bracket and antenna?