Does anyone know if it's possible to add the OEM JBL subwoofer to a 2007 Tundra double cab SR5? I've recently added the OEM JBL Navigation system to my truck, so I'd also like to add the subwoofer as well. Is the SR5 grade tundra prewired for the JBL subwoofer already, or not? If it is prewired, I should be able to find a quick-connect plug somewhere in the driver-side rear portion of the truck, either under the carpeting somewhere or behind a kick panel. I've done a lot of searching on this forum and I haven't found anything yet. I know some of you are going to respond back and say don't waste my time with the JBL subwoofer because it's junk. I personnally don't care what other people think. My goal is to have a completely new OEM system. I don't care for installing aftermarket junk in my truck because I consider most aftermarket stuff to be cheesy, even if it may perform better. I'm an OEM guy, always have been. Any direction that you can give me would be greately appreciated. Thanks.