Is it the touring edition w/the bose system?
If it is, you need to replace the deck, replace all the speakers, and have it rewired. The stock bose speakers have invidivual amps on each speaker and are proprietary, so you can't use em with another deck.
You'll need a mounting kit and harness for the deck. Front speakers are 6 1/2's, side/rear panel ones are 5x7.