2008 chevrolet help?!?!?!?!

I just bought a 2008 chevy and i have a few questions. First off i heard rumor that the wheel and tire companies such as discount tire or something of the sort wont put on new rims and tires because of all the electronic devices that read your air pressure and stuff inside the cab. Also where can you get a billet grill and do they have a full mouth billet yet for it. And last where can you get the piece to put in a aftermarket radio and where can you get a box for subs. I have looked for everything and cant find crap!

thanks for all the help guys

i dont know about the wheels and tires, but i'm sure there will probabily be some kind of complication...
for the aftermarket radio it depends on what kind of radio, how the dash is designed.....any GOOD reputible shop can tell you (I used to work for best buy and i trust BBY installers, but any other reputible shop can answer your question)
and for the sub box, i would just have someone custom build you one, wont be TOO expensive and it will always come out better than buying a cheap one...

I'm not upto par with the tire pressure readers, but I know tirerack.com gives the option to purchase those sensors and have them installed before they are shipped (if you buy wheels and tires).

As for everything else you probably will have to wait for SEMA (not sure when it is) for products for a vehicle that new.

thanks

That's what kinda sucks about new body styles, can't find crap. My hubby went to Discount and they did tell him that they couldn't do it, but he found someone that worked there who just put down it was on 06. Got them ordered then, now he's modifying the differential (not sure how to spell).