Adding wiring inside the door is a more delicate and difficult task than it looks. Especially in recent vehicles, the factory coupler is used between the door and the body, so careless wiring can lead to problems and the risk of disconnection.

At our shop, we thoroughly understand the structure of this factory coupler, secure the optimal route for each vehicle, and add wiring safely and securely. We do not perform any unnecessary modifications or sloppy work, and we perform the work while maintaining the factory quality.

This process greatly affects the final result of door work, such as speaker replacement, amplifier addition, and sound deadening reinforcement. Because it is a part that is not visible, it will be clearly reflected in the peace of mind and difference in sound quality in the future.

This is a meticulous step that we would like to recommend to those who are "afraid of problems arising later" and "want to use it with peace of mind for a long time."