I purchased Toyota Corolla Gli Automatic from Showroom. When I play some track ,sound only comes from front speakers and rear speakers are there but there is no output sound. I want to know that what will be the problem. Either speakers are not connected or there will be adjustment from system.Please let me know as soon as possible.Thanks.
Have you tried going into audio settings and moving the fader a little bit towards the rear speakers? (Maybe its set to the front speakers, all the way).
Failing that, it may be a wiring issue, i.e., disconnection somewhere.
There is VAPS option in Gli headunit which makes a center for driving position or passenger seats. Try that option. It slows down the rear speakers when it is turned on.It will be located in left bottom corner.