Naifay 7-Inch HD Touchscreen Car Stereo

Preface

To prevent injuries and fires, please pay attention to the following instructions:

• To prevent short circuits, do not drop metal objects into the device.
• If there is smoke or a peculiar smell, turn off the power immediately.
• Do not drop or collide the device strongly to prevent device failure. Observe the following notes:
• Do not install the device in places with strong sunlight, high temperature, high humidity, or dust.
• Replace the fuse with one of the same specification. Using a different specification may cause device failure.
• To prevent short circuits, pull out the power wire when replacing the fuse.
• To adapt to changing road and traffic conditions, lower the volume while driving.
• Do not get the device wet when washing the car, as this may cause short circuits, leading to fire or other failures.

Warning

1. Only connect the unit to a DC 12V power supply with negative grounding.
2. Never install the unit where it restrains safe driving operations.
3. Never use the video display function in the front while driving to prevent legal violations and reduce the risk of traffic accidents, except when using it for the rearview camera.
4. Never expose the unit, amplifier, or speakers to moisture or water to prevent electronic sparks or fires.
5. Do not change the fuse in the power cord without professional guidance; an improper fuse may cause damage to the unit or even cause a fire.

Installation

Thank you for purchasing and using our products. Before installing, please test the machine. Take the machine to the car battery and test it. This car stereo is designed for a 12V DC power supply. Connect the red and yellow wires of the power cord together and connect them to the positive pole of the battery. Connect the black wire to the negative pole of the battery. Wait 10 seconds after connecting, then press each button to see if the machine boots normally. If it boots, there is no problem, and you can proceed with installation. If it does not start, please reconfirm that you followed the test method steps correctly. If the problem persists, please contact us. Thank you for your cooperation. If you have any questions, please do not hesitate to contact us.

Wiring Method

Connections:

• B (Connected): Pink wire (Reverse)
• Red wire: Reverse Input
• Red wire: Reverse light
• Black wire: Ground (GND)
• Blue wire: Radio Antenna
• Green wire: Illuminate
• Brown wire: Steering wheel control
• Yellow wire: Power Supply +12V
• Pink wire: Reversing camera
• Orange wire: Parking brake cable

Speaker Connections (A & B):

• White/black striped: Front speaker +
• Gray/black striped: Front speaker -
• Green/black striped: Rear speaker +
• Purple/black striped: Rear speaker -

Notes:

• When the yellow wire (B+) and the red line (ACC) both have a 12V positive power supply simultaneously, the unit can be turned on normally.
• The yellow wire (B+) maintains power and the machine's memory function.
• Ensure that 8 speaker cables are connected correctly. Each cable should not be grounded, shared, or touch other lines to avoid no sound output, distorted sound, or overheating.
• Please check speaker lines carefully before installation. Any grounding or touching may burn the unit.

Machine Fixed Reference Method:

• Step 1
• Step 2

Steering Wheel Control

1. Connect the positive pole of the original steering wheel to the KEY (brown) line of the machine plug.
2. Connect the negative pole to the GND (black) wire of the machine plug.
3. In the "Settings" interface, find "Steering enter controls" and enter.
4. Enter the steering wheel control learning interface and press a button to learn. After successful learning, click the "Confirm" button on the page. After saving, you can use the original steering wheel buttons to control the machine.

Learning Method: Press and hold a button on the steering wheel without releasing it. Find the corresponding button icon on the machine's interface and click it. The color change indicates successful learning. Repeat for other buttons. After all buttons are learned, click "Confirm" to save. To relearn, click "RESET" and then relearn.

[Screenshot of settings interface showing learning options]

Button Light Settings

1. In the "Setup" interface, find the "other" option and click "Color light".
2. In the pop-up dialog box, select a single color or automatic change, then click "YES" to confirm.

Phone Link For Android

• The system supports most Android phones below Android 11.0. If you cannot connect, please contact us.
• 1. Open developer mode. (Consult your phone's browser for specific instructions.)
• 2. Open "USB debugging". (Consult your phone's browser for specific instructions.)
• 3. Connect the mobile phone to the car stereo via USB cable, download the required software as prompted, and the phone screen content will be projected onto the car stereo.

Phone Link For iPhone

• Supports Apple iPhone 13 series and below. For connection issues, please contact customer service.
• Connect the phone and car stereo using the original data cable.
• When the phone prompts "Trust This Computer?", select "Trust" to enter the interconnect mode. If a password is set on the phone, enter it first.

Basic Operation

1. Reversing Rear View Function: When the reversing rear view function is used, the video signal from the corresponding port is connected to the reverse line. The system will automatically switch to the reversing visual state when reversing.
2. Audio/Video Input (Optional): Connect audio/video lines. Press "Mode" to select AUX-2 state.
3. Bluetooth Function: This unit has Bluetooth functionality. After connecting the mobile, the Bluetooth symbol turns green, indicating a successful connection. Incoming calls will automatically switch to the Bluetooth interface. Press [phone icon] to answer the call and [phone hang-up icon] to hang up.

Remote Control Description

1. Power switch
2. Left
3. Mode switch
4. Last song
5. USB/SD
6. Volume-
7. Band/Automatic/Station search
8. Digital key
9. Aup
10. Menu
11. Confirm/Play/Pause
12. Right
13. Under
14. Next song
15. Choice
16. Volume+
17. Answer the phone
18. Hang up

Custom Logo

1. Click the "Settings" option on the home page.
2. Click the "Other" option in the "Settings" interface.
3. Scroll up in the "Other" interface.
4. Select the "Set logo" option. You can choose from 20 automobile brands.

Common Problems and Simple Troubleshooting

1. Unable to boot normally

Reason for not booting:

• Incorrect wiring: Ensure the yellow wire is connected to the positive pole, the red line to the key control line, and the black wire to the negative pole. Incorrect or missing connections will prevent booting.
• Color mismatch: If the original car wiring colors do not match the unit's wiring, it may not boot or could burn.
• Plug incompatibility: If the original car plug does not fit the new unit, it cannot be used and may cause damage.
• Fuse issue: If the unit does not boot despite correct wiring, check the fuse on the yellow line. If the fuse is intact, twist the yellow and red wires together, turn on the key, and press the unit's power button.
• Testing with a 12V power supply: If the unit still doesn't boot, connect it to a 12V-5A power supply. If it boots, the original car wiring may be faulty. If it still doesn't boot, the unit may be broken.

2. Automatic shut-down

Conditions for automatic shutdown:

• Cable error: If the blue cable (automatic antenna power supply) is connected to the unit's power cable, automatic shutdown may occur. Follow the correct wiring method to resolve this.
• Unstable voltage: Test the unit with a stable 12V-5A power supply. If it no longer shuts down automatically, the original power supply is the issue. If it continues to shut down, the unit may have a problem.

3. Noise

Causes of noise:

• Insufficient speaker power: When the volume is turned up, noise may occur if the original speakers are too small. Solution: Keep the volume moderate when replacing speakers or listening to music.
• Speaker cable grounding: If the speaker cable is grounded. Solution: Ensure the speaker cable is not grounded.

Remote control cannot be used

• Check battery: Align the remote control with a phone camera light and press a button. If the phone screen does not light up, replace the remote's battery.

5. Settings cannot be saved (no memory)

• Check wiring: Ensure the yellow and red lines are connected together (yellow to positive, red to key control). If reversed, change their positions.

6. Car audio with Bluetooth but not working

• Check phone connection: Search for "CAR-MP5" via Bluetooth on your phone. Connect and try answering calls or playing music. PIN Code: 0000.

7. Support no image of reversing camera

General situations:

• Incorrect or insufficient wiring.
• Camera connection method:
• a. Accessories: 1 camera + 1 power cord + 1 video cable.
• b. Wiring: Connect the pink or brown reversing control line on the unit's power line to a 12V positive source. The screen should turn blue. Connect the camera's video input interface to the backup light's positive and negative terminals. Connect the red socket of the camera to the power cable and the yellow socket to the video cable. Screw the red wire of the power cable and the video cable's wire together onto the backup light's positive pole. The black wire of the power cable is not used. Connect the other end of the video cable to the CAME video input interface on the unit. Connect the red line from the video line to the reversing control line of the power line.
• Camera malfunction: If the wired camera does not light up, it may be broken and needs replacement.

8. USB flash drive cannot be played, card slot does not accept card

• USB flash drive cannot play: Format the USB flash drive to FAT32, re-download songs, and try again. If it still fails, replace the USB flash drive.
• Card slot issue: Check if the memory card is inserted correctly. If the plug is broken, it may be the issue.

9. FM does not receive the program

• Antenna connection: Ensure the antenna plug is fully inserted and the antenna or its line is not disconnected.
• Scan channels: Press and hold "AMS" for 2 seconds for automatic scanning, or use the up/down buttons. If problems persist, try inserting a screwdriver or metal strip into the antenna port as a temporary antenna.

10. Just installed no sound

Troubleshooting:

• Speaker wire short circuit: Check if speaker cables are short-circuited. Reconnect if necessary.
• Original car wiring: If the original car only has 2 speaker cables, it may not match the unit. Reroute the original car line so that each speaker has 2 wires.

11. After a while there is no sound

Troubleshooting:

• Disconnect all speaker cables from the unit.
• Connect an external speaker to the green and purple tail lines of the unit.
• If sound is present, the car's speaker line is short-circuited or the speaker is damaged.
• If there is no sound, the unit is likely broken.

Movie playback:

• The unit supports movie playback via USB.

[Screenshots of Bluetooth, Radio, Photo, and Music interfaces]