hello, i am new to this forum. I just purchased a 05' Maxima w/o the nav package. Now i want to know if i can make the center console in a navigation screen, like hook up a nav drive, instead of paying like 2k extra. And also, trying to get rid of the cd changer/tape deck piece. need some ideas or thoughts on how to do it. Like which HU to purchase or what not. and I also want to keep the steering wheel control. How can i do that if i change the HU