So I bought a used Avic N-2 from a very trustworthy guy. It was cleaned up by a pioneer certified tech who recalibrated It and so forth. I got the deck wired It myself it worked great for about 2 days and then the screen stopped coming out. I took It Into the same place,got It back within three days (yesterday) and It worked perfect again. He rewired the track system and checked for normal use. I turn off my truck today like I did earlier in the week and turned It back on and my screen doesn't come out. It was installed professionally by a reference and he was very thorough. The screen did exactly what It did last time. Comes out of the unit about a 1/4" and stops working....Then a couple mins later shuts off......WTF IS GOING ON!? 
I feel as If time and money was wasted on this thing. I love Pioneer but I need help.
I'm a contractor and love my tunes and need my Nav.
Thanks to anyone so kind to read this novel and help me out 