The baffles for the door speakers were covered in fiberglas resin to help waterproof them. Clay was applied to the back of the baffle to help decouple the baffle from the door. Then, the baffle was bolted to the door, and covered in deadener to help further eliminate vibrations. Threaded knife inserts were used so the speakers could be bolted in without wearing out the baffles. Also stainless steel security screws were used to anchor all the speakers, amplifiers, and other equipment in the car.
Clay on the baffle:

Baffle attached to the door and sealed with deadener:

Speaker wires attached to the mid. Note the color coded wires to indicate polarity. Also, the leads were securely zip tied to the outer corners of the basket to prevent the wires from ever becoming disconnected while in the door:

Speaker bolted in place. Notice the unique heads on the security screws:

1. Intro Page
2. Deadening Install
3. Wiring Install
4. Deck Install
5. Tweeter Install
6. Mid Install You are here
7. Amp Rack/IB Wall