Today I was installing 4" Polk speakers in the rear D pillar, I pulled the panel off the D Pillar and located the speaker wires. After connecting the speaker wires to the 4" polks and turning on the Radio...no sound. I double check to make sure the + and - connections are connected properly. Still no sound. I got a volt meter to measure the voltage...nothing. It seems that the head unit is not connected or driving the rear D pillar speakers even though the speaker wires exists. I've tried setting the fader to rear speakers only but still nothing. Have anyone seen the same thing with their 2011? I have the basic factory 6 speaker unit.