Primera 2006 1.8SE sat nav

[Marc]

Hi there guys, I'm a new to the club.  Names Marc.  I have bought a 2006 primera and it is gorgeous, such a lovely car.  1.8ltre SE, it has a map button but when you press it it just beeps and does nothing.  I've heard rumours of did players under passenger seat but can't seem to see one unless it's nicely hidden. I'm wondering if it doesn't have one is it easy enough to add the dvd drive and get the sat nav on the screen? Also how difficult is it to add revers camera to the screen? Only want it as the wife drives the car sometimes ( say no more) hopefully someone can help me out. Many thanks