Disassembling the tail light assembly on the rear of your Mazda RX8 will allow you to replace a damaged light or lens, or replace them with an aftermarket assembly. The tail light assembly consists of a plastic lens that bolts to the body and uses bulbs and sockets set into it from the rear. Access to the bulbs, wiring and retaining nuts is made from inside the boot after removing the plastic trim panel that covers the rear of the assembly.
Open the boot of your RX-8 and locate the trim panels on the inside of the boot over the tail light assembly. Locate the plastic retainers that hold the trim in place, grasp the centre of the retainer with a pair of pliers, and pull it straight out.
Pull the plastic trim panel away from the boot sidewalls and lay it aside. Locate the bulb sockets on the backside of the tail light assembly. Rotate them counterclockwise and remove the sockets from the tail light assembly.
Remove the retaining nuts on the backside of the tail light assembly with a socket and ratchet. Pull the tail light assembly out of the rear of the car. Repeat the process to remove the second tail light if required.