hinten,
I had a similar problem with my PIOGMV1V2. I tore apart my whole dash, installed it, but couldnt see the display. It turned out to be a bad unit. I told logjam electronics and they sent me a new one. I replaced it and it started to work.
Check out this thread.
http://elcova.com/groupee/forums?a=f...1&f=6706011751