I bought a used Pioneer DEH-1800UB car stereo for my '92 Volkswagen Transporter.Naturally, the wiring's a mess and there is no pinout guide for the Pioneer anywhere.I started playing around with the wires and noticed that I could get the player to turn on with the green wires, which is counterintuitive as hell - you'd imagine those to be speaker wires, not AC and ground wires.I have no idea what to do next. The messed up adapter in the pic was provided by the seller. I bought a new one but with that one I couldn't even get the player to turn on
https://www.youtube.com/watch?v=kR2MO2kwFugHere's a video explanation of what all the wire colors do on Pioneer DEH series head units. From there you should be able to find your car's pinout and match the colors to the appropriate connections.
>>28913950>>28913950OP here.I have a weird situation where no matter how I look at things, my Pioneer player powers on from the incorrect wires. There are two plugs. The power plug does nothing. But if I take wires from the speaker plug, the Pioneer player turns on.I'm starting to think it has shorted or otherwise broken itself.
>>28913967Yeah, that sounds like there's something fucky going on internally. It's supposed to just turn on with 12V on both yellow and red and ground on black.
>>28913974Yeah it's not a good sign that he gave me an adapter where all the power cables have been cut or connected to each other.(in op pic)I still don't know what's up with that.No idea how he even used this thing but if I had to guess, he used the green cables (intended for speakers) to power it up, and then he used the red and white RCA jacks for actually getting sound out. That could work.
>>28913982It's likely toast. You never buy audio/electronics unless you can power it up and hear the fucker work. Even in scrapyards, they used to have some speaks and a battery so you could light up a used head-unit before buying.
Sometimes the factory unit is grounded only via the aerial. In such case you'll need to make your own ground wire.
>>28913948>manually wiring instead of buying a harness for 10 dollars
