acc wire for radio

Does anyone know where i can find an acc wire for an aftermarket radio i've looked and can't seem to find it anywhere its an 03 jetta. thanks

Two choices, one more difficult than the other.

1) Back of fusebox, find a keyed accessory.
2)Not as much fun.
1)take off the steering column shroud. 3 T25, 4 smaller phillips
2)Locate the ignition harness. Small brown/red stripe. This wire is the keyed accessory that stays on after key is turned off and until key is removed from ignition. This is the one I go after when I do decks in 2003/2004 VW products at my place of work. Maintains the exact same behaviour as the factory radio. Make sure you fuse the lead to the radio with a 7.5A (or whatever your aftermarket stereo draws on the accessory wire) fuse to protect the vehicle. (hey never know... something could pinch, rub, or chafe it)

Gus

I did my install the first way. I really wish I had done it the second way. I missed having the ability to use the radio with the engine off.

Thanks for the help i tried looking at the wires in the steering colum but now that i know the colour it makes it much easier.

Yep small brown wire with red stripe. And I second fusing it. I blew my keyswitch shorting it out. Took me a week of evenings to find and a few more grey hairs

You could also buy a can bus adapter harness for about $30 and just put it up.