AC-44F8 User Manual

ATTENTION: This product is compatible with both ATOTO head units and third-party head units from other brands that support steering wheel key mapping and the wiring option as described in 1.2.

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1. Installation:

This product has two components: a receiver and a transmitter with a strap.

The transmitter can be magnetically attached to the enclosed strap.

• 1. Transmitter:
     Fastened on vehicle's steering wheel or mounted to any desired place with stickers.

• 1. Receiver:

Connect the black cable on the receiver to the Chassis/Ground (-) cable on the head unit; the red cable to the Accessory/lgnition (+)cable;and the white cable to either one

of the Steering Wheel Key (+) cables. (See Pic. 3.)

【AI 图解: Steering wheel control (SWC) receiver wiring example—connect the receiver’s black wire to Chassis/Ground (−), the red wire to Accessory/Ignition (+), and the white wire to either one of the Steering Wheel Key (+) wires on the head unit harness (pick one of the two).】

Instruction
1.1) Connect the black cable on the receiver to the Chassis/Ground (-) cable on the head unit; the red cable to the Accessory/Ignition (+) cable;and the white cable to either one↵
1.2) of the Steering Wheel Key (+) cables. (See Pic. 3.)↵

Diagram caption text:
2.1) Pic. 3

Diagram labels (as shown near the wires):
3.1) Chassis Ground(-)
3.2) Accessory
3.3) Ignition(+)
3.4) Steering WheelKey(+)
3.5) Pick One of Two Steering WheelKey(+) Cables
3.6) Steering WheelKey(+)

1. Operations

2.1 Key Mapping

Step 1: Go to Settings > General > Steering Wheel Audio Key to begin.

Step 2: Activate a function by pressing a button or rotating the knob.

Step 3: Tap a key on the transmitter to map a function.

Step 4: Map all desired buttons and knob actions or skip any.

Step 5: Save and exit. Control the head unit with the transmitter.

1. Specifications

Columns: Item | Value
Model: AC-44F8
Current: 2~20mA
Voltage: DC2.8~3.4V
Battery: 3.3V-CR2032
Operating Temperature: -45~ +85℃(-113°F~+185°F)
Shell Materials: ABS+PC

1. Troubleshooting

Columns: Problem | Solution

Fail to work after several months of use: Battery runs out and please changes for a new one.

Not responding: Check for faulty wiring. Ensure cables are connected correctly.