Well I got to Florida. I am charging up the battery and I peeled of the cover on the back woofers. For sure one cone is delaminated. I am going to wait for a bit more charge before I watch the motor on the woofer to be sure the stock amp is driving the woofers. I will be looking into peeling the covers off the doors to see what the cones are like on the doors.

In the meantime, I asked the Power Acoustic folks (via email) on what the output voltage of the low level inputs. Have not answered in a couple days. I though they may be the best source for that info. It is either going to be 2V or 2V.