Need help, subwoofers not working

[1960apache]

Hello all I need some installation help, I have 2 amps and a 7 band pre amp controller. The #1 amp controls the front and rear speakers which is working fine. The #2 amp powers the subs, has power but no sounds at the subwoofers, here is my wiring, what am I missing?

Thanks in advance.

 

[Inductor]

First check the speaker drivers (subs). Do they work?