I need some advice from people in the know. My situation: Purchased a deck about 4 years ago and itís been sitting in the garage in the box since then. I listen to my ipod and satellite radio 95% of the time. Figured i'd install the deck to get rid of the FM transmitter and all the satellite stuff. Found out that i need an additional module to run the satellite, it's $140. Should i just bite the bullet and buy it or would i be better off with a deck that's newer? Do the newer models still need this expensive module?