I've got an x reg. audi a3 the code was needed for the stereo so I've removed it , I've got my other stereo from my other car put it in an there nothing , it's got a sub in the boot with disc changer , basically wat I need to do is chop the plugs an wire it all my self , not the cd changer just the speakers am this live so if anyone could just tell me , which wire to we're it would be appreciated eg put the red and yellow together an the other yellow, green to blue , brown to white etc ? Thank you