I currently own a car with an after-market audio system installed (amp, sub, speakers, deck, etc.) and I am in the process of buying a new Infiniti G37. The G37 comes with a 7" LCD screen to control all the current audio system along with the air conditioning and things of that nature. I am looking to take the system out of my old car and put it in my new G37 but I don't want to mess with the standard 7" LCD screen that the G37 comes with. Is there any way to keep the screen and simply just swap out the speakers and put the amp and sub in there without having to take out the LCD screen and putting in the after-market deck or if I wanted to transfer the system I would have to transfer the deck as well?