Hi there, my radio was working but no sound at all
I changed it to aftermarket radio still same problem

I have tired changing fuses
i have changed the headunit
after Doing some research on google I found it I can be the boss amplifier problem which I am willing to change but can’t find it anywhere under the driver and passenger seat, only thing I found was under the passenger seat 1 wire going into the seat

please help me out with this problem

thanks