On my old Silverado, I tapped into the rear speaker wires under the sill plates and ran some wires back to the bed for speakers. I've got an 08 Dodge now, can anyone help me with wiring colors/access for the speakers to do the same, or suggest a better (but still cheap and easy) way to do it? We're talking about a pair of $20 Walmart speaker-in-a-box here, nothing too fancy. The truck has the Infinity radio as well, don't know if that matters. I know Bose uses a different type of speaker than most.