Greetings! Just picked up our new Armada 7/16. Thought it was a bit out of our price range, but stumbled across one that was pretty bare. Yes, I know, not too exciting without the great stereo system, sirrius satellite radio, leather, etc....but it's still an ARMADA! MSRP was $37K. Got it for $31K after negotiating and also $2K rebate. I believe invoice was $34K. Galaxy. Love it. But....can a better stereo system be added? How 'bout sirrius satellite radio? Would love to add those items. Can it be done?