Looking for some suggestions.....I want to get XM radio, but have the base radio. :-( I have no real need for NAV unit....but I do want full integration with the radio for XM, no FM Mod's...if I can find a GM Radio such as the 6 disc unit, can I replace the base model with it? Is that possible? is this a option that can be had after the fact from dealer, or does anyone here have one to sell? 
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Superior Blue, Base, Bush Guard, Mud Flaps, Side Steps, Mud Mats
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