Surfed in looking for info on removing the door panels in my Tahoe. Either the speakers were REALLY cheap material, or the previous owner really liked to rock out. The drivers door and sub woofer are blown. The passenger front is intermittent, and the passenger rear is dead. The dead one could well be a different issue, and I have found that the built GM crossover network circuitry has a couple of issues. Looks like a nice place. I may have to pull up a chair and "set a spell".