This is what
I THINK the S752A Rear Door and D-Pillar components wiring diagram looks like...working same for S752A front door with diplexer...then attempting to see how I connect to the S6F1A midrange. I think I see a path forward...still working.
Any EEs or wiring schematic guru's out there willing to help? I basically used the continuity setting on my multimeter...the black circle where it splits is assumed as I didn't want to disassemble my speakers (I get continuity from pin 3 to pin 5 and I know from wires pin 3 goes to cap)...and it seemed the only way which I saw it worked in parallel. Total Load of 2 ohms.