Switched live ?????????????? Wiring help !!!

[scoobysamuk]

HI ALL I,M CURRENTLY FITTING AN AFTERMARKET HEADUNIT IN MY AUDI A3 NOW, I DONT HAVE A SWITCHED LIVE, JUST GOT A PERMINANT, AV LOOKED INTO IT AND IT SEEMS THEY DONT, HAVE ONE, AND YOU NEED TO BUY A CANBUS PLUG KIT OR SOMETHING, WELL MY CAR NEVER CAME WITH ISO PLUG OR ANYTHING ON IT ORIGANALLY SO JUST GOING TO WIRE IT UP FINDING A SWITCHED WIRE SOMEWHERE, DOES ANYONE HAVE A FULL WIRING DIAGRAM, OR NO WHERE I CAN EASILY ACCESS 1 THAT I CAN TAP OFF THAT WILL TAKE THE LOAD NEEDED, ?????????
I FOUND 1 ON THE PASSENGER SIDE, TAPPED OFF IT THEN WHEN I PRESSED THE SCREEN WASH IT GOES DEAD LOL SO THE STEREO GOES OFF,
I ALSO FOUND ON PASSENGER SIDE A GREEN ONE WITH A RED WIRE , THIS WAS 12V SWITCHED BUT AS NOW GONE DEAD ?????????? AND CANT SEEM TO GET A READING OFF IT NOW DOES ANYONE KNOW WHAT THIS ONE COUD BE FOR ?????????? ANY HELP WOULD BE GREAT THANKS SAM

[Brian566]

What Engine ? What Year?

I think if it is a latter Model you may need the canbus Interface these are avaible on line at must audio shops just type in Audi Canbus Interface.

[Sam]

Something about a switched live, but it's all CAPS LOCK so ...

There's a switched live under the dash.

[Issac Hunt]

BUy a CANBUS adapter or run a proper switched fused feed directly from the fusebox.