Good Morning:

My 1987 Mazda RX7 rear parking light are not working but the front ones are. I have the following modifications done:Haltech E8 Stand Alone Fuel/Air Management System
1999 Year Japan Spec 13BTT Twin Turbo And Transmission
Street Ported Intake And Exhaust Ports
Rebuilt Engine With Fresh Seals From Atkins Rotary
Balanced Rotors Along With Eccentric Shaft And Counter Weights
.70 M24 Garret Single Turbo And 44MM Racing Beat Waste Gate
Racing Beat Mufflers With Pre-Silencer
Greddy From Mounted Intercooler, Charge Pipes, Spectre Air filter
1999 Mazda Turbo II Rear Differential, Suspension And Disc Brakes
18 inchRaventi Wheels, 215/35R18 LexaniHigh Performance All Weather Tires
Updated OEM Dash With LEDs, Updated Steering Wheel
1990s Alpine Radio With CD Changer, Alpine V12 4 Channel Amplifier
Alpine Dome Tweeters on the dash, Infinity Kappa 6 ˝ in Mid-Bass

Disgracefully the car was parked for a long time and exposed to harmful sun and cold nights.
It is maybe the switch is bad, blown fuses? Any suggestions would be appreciated.

 

Have you checked for power and ground at the rear lights?

 

My fd had headlights that worked but not tail. My dome light also was permanently on and I could never figure out why. A buddy rewired the tail lights to the headlights and it's a heck of a lot better then driving around with the inside lit up but not my butt.