I got a 2007 Audi A4 and the guy had a Pioneer Touchscreen radio in it, but he wanted to keep his radio. So I took the radio out of my old car and put it in the Audi.

I hooked up BLACK > BLACK, RED > RED, YELLOW > YELLOW and the radio powered on with the door open and the key not in the ignition and it won't turn off unless I just disconnect the wires. Any ideas?

it also has a Premium Output Converter ISVE61 wired into it but I don't have any of the wires hooked up to the radio, it also has an antenna wiring harness installed with a blue wire coming out of it, the blue wire is connected to the blue wire on my radio. Also has a yellow wire and a green tiny wire clipped in half on the factory harness.

 

FIXED IT!

For anyone else like me new to Audis, the germans run everything thru the CAN network, so if you install an aftermarket radio, there is no SWITCHED 12V wire. Don't hook up RED > RED or you get constant 12V power all the time. You need to tap a wire somewhere else to a SWITCHED source. There was a random green wire sticking out of my dash and after I hooked the RED wire coming out of the back of the radio to that green wire everything worked like it should.