VW normally leave the wiring out on their other models if you do not go for the 8 speaker option when new - the same is certainly true of the EOS. When mine was ordered it was an extra option to have the 8 speakers (and another one for DynAudio).
Quickest way to tell if wiring is present, is to remove the stereo and look at the connections on the Quadlock connector - if you have 2 thick twisted pairs then only front speakers wiring is present, 4 thick twisted pairs and the rear speaker wiring is fitted already. The stereo has a label on top to show speaker locations on the Quadlock connector. There will also be one thin twisted pair which is the CAN bus connection.
Quickest way to tell if wiring is present, is to remove the stereo and look at the connections on the Quadlock connector - if you have 2 thick twisted pairs then only front speakers wiring is present, 4 thick twisted pairs and the rear speaker wiring is fitted already. The stereo has a label on top to show speaker locations on the Quadlock connector. There will also be one thin twisted pair which is the CAN bus connection.
