Does this stock radio have a subwoofer output? The pinout in the diagrams for the premium audio package indicates pins 22, 24, 26, and 28 are the output to the stock amp. Keep in mind i'm not talking about using a stock amp or sub combo or adding it, i'm just wondering if to run a 10" Jensen sub i'll need a different radio. I'll be using an Orion CS 150.2 amp that i have laying around to power it. I figure a 10" sub will provide enough of a bass boost, to take load off the regular component speakers, should sound pretty good. I have an SL, so prewiring for the high fidelity audio and Bluetooth, and satellite radio is already there too.