I'm looking at a 2007 Honda Civic Si to buy, it's well priced, and comes with 'navigation', but someone has apparently taken out the stock system and put in an aftermarket screen, which I really don't like because it sits too far back into the little space, and it doesn't flip out and reveal the CD player and PC card slots, so I'm assuming it doesn't even have a CD player. If I bought the car, I'm going to have the system replaced with a stock navigation system, which controls the audio, and the car already has the steering wheel bluetooth functions and everything. Does anyone know what it would cost me to have a stock system put in?