With the new volume control installed, reassemble the T3's control unit in the reverse order that you disassembled it. Make sure all screws are securely tightened, and the casing is properly closed.

Before embarking on this project, ensure you have the necessary tools and a replacement volume control potentiometer. You can purchase a replacement part from online marketplaces or electronics stores. Make sure to buy a potentiometer with the same specifications as the original one. Additionally, take necessary precautions to avoid damaging your speakers or injuring yourself. Unplug the speakers from the power source, and ground yourself by touching a metal object or wearing an anti-static wrist strap.

The volume control potentiometer is usually a small, circular component with three legs. It's connected to the PCB and has a shaft that extends to the front panel of the control unit. Gently desolder the legs of the old potentiometer from the PCB. You may need to use a desoldering wick or a pump to remove excess solder. Once the old potentiometer is removed, take note of its orientation and position, as you'll need to replicate this when installing the new one.