Hey guys, first post here so if I am not on the right track please go easy on me haha..

Righteo.. I've got a BF XR6 06 and I have LITERALLY changed everything inside the cab except for the dashboard, dash loom, cluster and steering wheel to Fairmont Ghia (some non electrical things are just Fairmont)

Now my issue is that the factory Ghia sub is not working WHATSOEVER. I have ALL the Ghia wiring from the firewall to the rear parking sensors. I put it on a OBD2 scan and got "ACM U2014-24 No response from the audio subwoofer unit" come up.
Everything else in the car works fine... Can anyone tell me the missing link... Please! Thanks heaps for any and all help.