91 Rear Speaker Amplifier

[AK153]

Hi everyone, can anyone tell me the location of the amplifier for the rear speakers. I'm not getting anything out of the rear speakers and I have the factory deck. thanks

 

[airdreams1]

I assume you have a Premium sound system?

simple google search
Finding the Factory Amp 1990 4Runner - YotaTech Forums read about half way down

 

[3rzrunner]

its a small silver amp inside the factory speaker encloures in the rear 1/4 panel