Sorry for so many eletrical posts. My van came in great condition from the previous owners, except the electrical...
The van came with a Pioneer MVH-S600BS
head unit. It works just fine. However, I wanted a unit that could support a backup camera, Android Auto, and CarPlay. So I bought a Pioneer AVH-W4400NEX
Got a unit, installed it, it started up, worked for a few minutes, then never worked again. Crutchfield sent me a replacement.
Second unit, started just fine, could even hear the radio, then boom stopped working. Never came back.
Got a third unit today. This one was bench tested at Crutchfield before shipping. Installed it, it never worked.
What I mean by not working, is the LCD screen has the backlight on, but no visual. The buttons are on, but dont work. The fan is on.
Crutchfield was baffled by all this. The radio wires are putting out the correct voltage (both power wires), and the harness from Crutchfield works (plugged the old radio into it).
So, that means something with the van at this point im guessing. But what. The old radio works, newer radios with fancy screens dont.
I thought maybe my weird battery issues were the cause, so today I installed a brand new under the hood starter battery and installed the second starter battery on the frame rail.
But that didnt help either.
I know some of you have newer radios in your vans and was curious if yall ever ran into anything like this before. Or any alternate ideas t check or try.