Hello all:</P>


Would anyone know why the rear speakers on my 1999 4Runner would not play, but the front and tweaters do?</P>


Thanks,</P>


Buf</P>

if your vehicle has an factory amp, the rear channel in the amp could be bad...or if it is internally amped, then the rear channel in the head unit could be bad...or, in a lesser case, you have a wiring issue and it could be somewhere between the HU and the speakers...

JUST RAN INTO SAME PROBLEM WITH MY 1995 AFTER REPLACING FACTORY DECK AND REMOVING FACTORY AMP+ALSO KNOW THAT THE REAR SPEAKERS ARE INTERNALLY AMPED?STILL CANT FIGURE OUT HAVE YOU ANY LUCK?

honestly, as trying to fix it goes, the worst case is that there is a wiring issue, which means that you would have to tear up all of the wiring to find the problem. my first guess would be a bad rear channel on the head unit, or a bad circuit in the amp. i can suggest a few trouble shooting ideas...if youd like...first, turn the balance all to the rear, then have someone turn the volume way up on the radio, and see if you can hear anything...a low hum, buzz, anything that may be transmitted to the rear speakers.

I had the same problem with my 1991 4Runner when I was installing a after factory deck and the solution to my problem was to combine the blue wire coming from the deck to the control wire for the rear speakers amp. they will then work