so Ive got a 2012 maxima s with out the nav. I wanted to see if I could replace where the volume control and stuff is with a 7'' nav/radio/Bluetooth screen. is this possible to do? also I wanted to get a couple opinions on some different headlight brands, hids or leds if the led will work with the projectors. I have kensun hids currently but when I turn my car on they don't turn on automatically I have to turn off my lights and turn them back on to ge them to come on. also if my car is already running and it gets dark they will come on perfectly.