Details - 997.1 gt3 non bose stock stereo cdr24
the woofers in the doors were blown so i disconnected them until replacement
figured i’d change the head unit as well
so for head unit i got a sony apple car play double din
ebay bezel kit
ebay wiring harness adapter
focal iss-200 speaker system
i installed the head unit and all went smooth. Used the wiring harness and all seemed to be well. The harness has receiver for the power wires and speaker wires. But there is one other plug that was plugged into the original head unit that was not plugged into anything with the new head unit. It has a few thin gauge wires into it.
Today i installed the focal 8” door speakers and i get absolutely no sound from them. All the other speakers work just fine. But those two woofers aren’t doing anything at all. Could that third harness plug have something to do with it? All other wires were connected as they should be.
Any help is appreciated

If the amp only powers the 8” speakers in the doors then that makes total sense. I’ll look at it when i get to the shop later today.
All the other speakers are working as they should.

Thanks for the tip. Hooked up that remote turn on lead and all is well