Direct replacement of existing inner handle plastic cover
Wiring harness included.
Easy to install.
The LED turns on if the engine is on and turn off if the engine is off. (ACC line)
For Mazda 3 BP 4th Gen only, Sedan/Hatchback
Package includes 4pcs inner door bowl cover with LED
Just find a ACC line (12V) in the window button harness plug using multimeter or light pen
To test, make sure your engine is on and try to plug and connect the cable. If LED is not turning on, try to put the pin in another slot until you see the LED turns on. Secure the connection by using electrical tape or cable tie.