Hi everyone this is my first post. I have been getting a ton of info from here and after reading and searching I didn't find any posts to this question. I have been considering a double din nav system and was wondering if installing it will lose the audio controls from the back seat area. Also, does anyone have any pics of an Pioneer AVIC D3 installed in a titan. Thats the HU im considering. I had the AVIC N3 in my car that I traded in and still have it (i'm trying to sell it) but wanted to opt for the double din. Any input or advice would be awesome.