Ive been reading up on the wiring of the BA and BF series falcons. They seem to be pre wired for a factory sub and amp. Now given the wagon hasn't got a parcel shelf to put the sub into. Has Ford still left the wiring in place for the sub and amp setup?
If they have pre wired the amp setup, where have they stashed the wires in the wagons?

Im not entirely sure myself. I cant say i've seen any loose connectors floating around in the back of the wagon. I would hazard a guess as that there wouldnt be as the options list for the BA BF was limited to XT or Futura Spec, where the AU went up to a Fairmont spec and may have been optioned for the amp. Try Papa Smurf, he works for a ford dealer and should be able to tell you if the loom for the BA BF wagon has this option available.

Do you have a definite answer yet?

Considering my dealer refused to do a premium sound upgrade in my wagon (except ICC) at purchase, I can only assume the wagon harness musn't have any premium upgrade wiring included.

I am slowly looking into upgrading my stereo in my wagon. Have you done any upgrading yet? (amps and subs)