I want to install an aftermarket Pioneer AVH-280BT in my 2006 Nissan Titan King Cab. I have been reading up all over the place from amazon to eBay on what is needed and how to do it. Can it be installed without a dash kit, and do I need to also buy a harness or can the same one be used that comes with it? I also want to have the reverse camera placed on the back too, any help in what to buy would be very grateful. Thank you.