Only hearing sound from center console speaker.

[FireThrow13]

I have no sound in my front or rear speakers. I’m completely lost on what to do or whats happening or isn’t. I have an aftermarket stereo, just a Sony n5000bt. I checked the wiring and everything’s connected to their respective wires and I even cleaned up the connections and resoldered them. I’ve checked in the stereo settings and none of them changed anything regarding the front and rear speakers.
For reference I’ve got a 1990 2+2 with I could only assume the Bose option.
Any help would be appreciated
Thanks

[FireThrow13]

I checked all the impedance of the speakers and theyre all good. Bad head unit?

[NolimitZ32]

If its the Bose option then either you aren't sending power or a remote signal to the amps or the amps are burned out. Bypass the amps and see what happens.

[Daspyda]

If you use aftermarket speakers, REMOVE the amps.