hey guys...i am coming from owning and driving an 89 mercedes 190E 2.6L...im going to be buying a 97 2.3 turbo for $3600....and i was wondering what i can do with a budget to the car...and do these cars come with a boost gauge? where can i get a CAI or a better filter for more intake...and clear corners and everything else to make it better? is it hard to take the radio out and put a new one in? (how do u take the center dash apart to get to the radio?) and will it be a ***** since the stock radio has that security thing on it? i have a pioneer deh-4600 cd/mp3 player im going to put in...and what kind of speakers does this car have? i will be putting my kicker 12" L7 into the hatch....