How to install the audi A3 illuminated car door sills
Why choose wired illuminated door sills?
They offer greater stability and durability as there are no battery-related issues.
They are practical and convenient as they operate with the car’s power system.
Let’s now proceed with the installation steps for the Audi A3 illuminated door sills.
Tools：Flat pry bar, Electrical tape, 22AWG wires, Wire stripper, Tester / Voltmeter, Heat gun / Hair dryer, wire fish tape / long zip tie, Quick Splice Wire Connectors, Alcohol / 3M Adhesive Remover, Plastic scraper
1. Hands remove door seal panel.
2.In this a3 to remove a lower piece, you need to unfasten the top portion and then remove the middle section with the lower piece.
3. Here you can see white clips that needs to be unfastened.
4. The metal clips on the middle section and the bottom portion of the trim to remove trim piece properly.
5. Remove old door seal.
6. Use a hair dryer or heat gun to warm up the glue underneath the door sill.
7. Use flat pry peeling the door sill.
8. Clean the residue of 3M Adhesive on the car sill using a heat gun, plastic scraper, and 3M Adhesive Remover.
9. Place the LED door sill plate in the installation position, pass its wires through the rubber seal. Place two layers of adhesive tape underneath the wires to prevent cutting them.
10. Reinstall the rubber seal.
11. Repeat the installation for the rear door.
12. Remove the rear passengers dome light. it easy pops up by Flat pry bar.
13. With the tester tool locate ground wire and the wire that provides power when the door is open.
14. Run extension wire to the dome light under the ceiling panel. Grab a very long zip tie fish it under the ceiling panel. It’s important to make sure you run the zip tie on top of the airbag.
15. You can see a zip tie in the dome light opening. Attach extension wire with electrical tape and fish underneath the ceiling panel.
16. A3 the dome light has two power wires for the left and the right lights. So, attached left side pair of doors to the left light and right side pair of doors to the right light. The negative wires from the both sides attach to the brown ground wire on the dome light.
17. Tackle extension wire along the b-pillar.
18. Connect the led door sill wires to the extension cable from dome light all together. Positive to positive, negative to negative. Twist them all together and isolate them with electrical tape.
19. Secure the extension wires with duct tape and attach it to the B-pillar to prevent it rattle between the panels. Then repeat all the steps above on the other side of the vehicle.
There are many different ways to connect the wiring, not necessarily taking power from the dome light. If the car has foot lights, door lights, etc., you can be installed according to your preferences.
