I've posted before regarding the black screen on startup. I'm on my 3rd unit made in November and it does the same thing. The unit is installed in an 07 GMC Sierra with a Duramax. I also have an Astrostart 2505A. I have the wait to start wire hooked up for the glow plugs so they will work and the truck will start right afterwards. For whatever reason when it's cold and the glow plugs have to light for their full duration when my truck is first started the LCD will be black. Now, once it's started and shutdown and started again(glow plugs don't light and if they do it's not long) it's okay and the LCD comes right up and will do so for the rest of the day. I've been thru 3 head units since October and it's still not right. Pioneer has no clue, the metra harness people have no clue and the Astrostart people have no clue.
I think it has something to do with power being sapped by the glow plugs on startup and it will not allow the head unit to fully boot. It seems like somewhat of a common problem with diesels, Ford's, GM etc...
Do any of you electrical guru's have any idea of where to start?
I was going to run a constant battery source to the yellow wire(acc) on the Metra harness. BTW: this unit also has been bypassed...
