【AC-T281 Audio Harness for Toyota Display Audio Vehicles】

The AC-T281 is a dedicated harness designed for people who want to keep the factory Toyota display audio while adding aftermarket equipment such as DSPs and power amplifiers.

Compatible with 28-pin and 10-pin terminals, with a length of 1.8 m. It serves as an easy-to-use base for extracting signals from the factory wiring, making it easier to develop your audio system while utilizing the vehicle-side wiring as much as possible.

“I want to keep the convenience of the factory display audio, but I’d like the sound to have more depth and information.”
“I want to add a DSP and an amplifier to create sound tailored to the interior.”

In cases like these, how you assemble the initial signal take-off is important. If this part doesn’t match the vehicle or the added devices, the wiring may become complicated or you may need to rework it later. The AC-T281 is a harness that makes it easier to organize that starting portion of a system upgrade.

Because it is 1.8 m long, it’s easier to route the wiring to the aftermarket unit, and it also makes it simpler to assemble the work even if you change specifications or adjust things later. Although it looks like a small part, it affects how easy the wiring processing is and the maintainability afterward.

Note that if you use it in a front-speaker-only network mode, additional加工 wiring is required separately. Since the connection method varies depending on the vehicle’s factory audio specifications and the system configuration including the DSP and amplifier, it’s more reliable to confirm based on what you actually want to build, rather than judging by the harness alone.

At Logon, we don’t just install the AC-T281 by itself—we also organize the wiring and configuration together in a way that’s practical, taking into account your current factory system, the equipment you plan to add, and even future system upgrades.

If you’re considering a sound-quality improvement by making use of the factory display audio, please consult us while checking the vehicle model, model year, and your current audio specifications. If I were doing it, I would arrange everything from the very first harness selection so you won’t run into problems later.

■ Main Specifications / Specs

【Basic Information】
Product name: AC-T281
Product type: Audio harness for Toyota display audio vehicles

【Compatibility / Configuration】
Supported terminals: 28-pin / 10-pin
Harness length: 1.8 m

【Notes for Use】
When using in a front-speaker-only network mode: Additional processed wiring is required separately

• Depending on the vehicle-side specifications and system configuration, the required connection details may vary.