Toyota FJ audio modification DD bass inversion, good equipment requires a professional modification team
Car audio modification is a job that pays great attention to craftsmanship. A complete set of car audio equipment is actually a semi-finished product, but the modification process accounts for 70%, which is related to the final effect.
The owner of this Toyota FJ, this is the second car to have modified the audio, and some equipment was transplanted from the previous car to this new car. When transplanting the car audio system, it is difficult to make use of the general wires for the next car, so the wires have to be replaced from new. Car owners choose a better brand wires, Barney speaker wires. The owner of the subwoofer chose the American DD 8-inch, and the box body will be reversed and modified according to the concave position of the rear trunk of the original car. Here are the details of the modification process.
This is the sound system equipment to be modified into Toyota FJ.

The door horn modification first completes the door sound insulation.



Horn pad installation, even if the equipment is brought by the owner, is strictly implemented in accordance with the modification standards of our store.

This is Barney speaker wire, made of 7 N single crystal copper.


Renderings of the modified middle woofer unit in the door.

Tweeter unit retrofit fixed detail process.

Renderings of the modified completion.


The modification of the subwoofer cabinet is particularly time-consuming, and the concave structure is quite complicated. It seems simple and easy to do, but doing it by hand is two different things.


American DD 8-inch woofer unit has won the sales championship for two consecutive years.


The renderings of the final modification.

It meets the requirements of car owners and even exceeds the expectations of customers.

Alpine four-channel power amplifier and Magic Cube dsp are installed under the passenger seat.

Another Alpine single-channel power amplifier is also modified under the driver’s seat.

Overall finished renderings.

This is where the sound system power cord passes through the firewall and enters the car, with sealant applied.

The sharing of the Toyota FJ audio modification operation process has been completed.