Skoda Octavia A7 radio pinout: connectors, wire colors and connection diagram

Owners Skoda Octavia A7 (2013–2020 model years) are often faced with the need to replace or upgrade the standard radio. Either this is due to the failure of the original head unit, the desire to install a multimedia system with Apple CarPlay or Android Auto, or simply upgrading the audio system - you can’t do without knowing the pinout of connectors. Connection errors can lead to a short circuit, failure of the control unit, or even fire of the wiring.

In this article you will find detailed pinout diagrams for all versions of radios Octavia A7 (including Bolero, Amundsen and Columbus), decoding the colors of the wires, the purpose of each contact, as well as practical advice on connection. We will figure out which wires are responsible for power, speakers, antenna and CAN bus, and how to avoid common mistakes when installing a new radio. If you are planning the work yourself, this guide will help you save time and money at the service center.

What radios were installed on the Skoda Octavia A7

Depending on the configuration and year of manufacture, Skoda Octavia A7 was equipped with three main types of standard radios:

• 🎵 Bolero — basic system with a monochrome display (5 or 6.5 inches), without navigation. Supports Bluetooth, USB and AUX, but does not have a touch screen.
• 🗺️ Amundsen - multimedia system with color touch screen (6.5 or 8 inches), built-in navigation and support MirrorLink.
• 🌍 Columbus - top version with 8-inch display, 3D navigation, voice control and integration with Skoda Connect.

All these systems use the same connectors Quadlock (or its modifications), but may differ in the number of connected wires and the presence of additional interfaces (for example, CAN-Bus or MOST for premium versions). Important: radios Columbus available with premium audio system Canton have a separate amplifier, which complicates pinout.

Before purchasing a new radio, check its compatibility with your version Octavia A7. For example, if you have Boleroand you want to install Android radio with support CAN buses, you will need an adapter for the correct operation of the steering wheel buttons and on-board computer.

Connectors and pinout of the head unit

Standard radios Skoda Octavia A7 connected via two main connectors:

1. Quadlock (ISO) — main power and speaker connector (40-pin).
2. FAKRA — connector for antenna and additional interfaces (for example, CAN-Bus or USB).

Below is Full Quadlock connector pinout for most versions Octavia A7 (2013–2020). Please note: wire colors may vary slightly depending on the year of manufacture and equipment.

Contact	Wire color	Purpose	Note
A1	Red (+)	Constant plus (12V)	Supplied directly from the battery
A2	Yellow (+)	Ignition (12V)	Activated when turning the key
A3	Black (–)	Mass (ground)	Connects to car body
B5	Green	Right front speaker (+)	Polarity is important!
B6	Green/black	Right front speaker (–)	Negative wire

For convenience, we have divided the pinouts into groups:

• 🔌 Food: contacts A1 (constant +), A2 (ignition), A3 (mass).
• 🔊 Speakers: contacts B5–B8 (front), C1–C4 (rear).
• 📡 Antenna/CAN: contacts D4 (antenna), D7/D8 (CAN-H/CAN-L).

Full Quadlock pinout for Octavia A7 (PDF)

You can download a detailed diagram in PDF format indicating all 40 contacts at this link (archive of owners).

Wire colors and their purpose

One of the most difficult aspects of connecting a new radio is correctly identifying the wires by color. B Skoda Octavia A7 The standard color scheme is used, but there are some nuances:

• 🔴 Red - constant plus (12V). Never connect it to the ignition - this will lead to battery discharge!
• 🟡 Yellow - plus from ignition. Responsible for turning on the radio when you turn the key.
• ⚫ Black — mass. Must be securely attached to a metal part of the body.
• 🟢 Green/green-black — right front speaker (+ and –).
• 🔵 Blue/blue-black - left front speaker.
• 🟣 Purple/purple-black — rear speakers.
• 🟠 Orange — lighting (dimensions). Allows the radio to automatically adjust the screen brightness.

Pay special attention to the wires CAN-Bus (usually orange-black and orange-brown). They are responsible for the interaction of the radio with the vehicle’s on-board network. If they are not connected correctly, the steering buttons, on-board computer or climate control may not work correctly.

⚠️ Attention: In radios Columbus with the system Canton The speaker wires do not go directly, but through an external amplifier. Connecting a new radio without an adapter will result in no sound!

Connection diagrams for a new radio

When installing a non-standard radio (for example, Pioneer, Sony or Android car radios) you will need an adapter to connect to the connector Quadlock. There are two main ways:

1. Using an adapter (recommended for beginners).
2. Direct connection (requires soldering or crimping terminals).

For the first option, an adapter is suitable ISO → Quadlock, which can be purchased at auto electronics stores (for example, Connects2 CT23SK02). Connection diagram via adapter:

1. Connect the adapter connector to the car's standard wiring.
2. Connect the other end of the adapter to the connector of the new radio (usually ISO).
3. Check the polarity of the speakers and power.

For direct connection use crimp terminals or soldering. Below is the pin correspondence diagram Quadlock and standard ISO:

Quadlock (Octavia A7)	ISO (new radio)	Purpose
A1 (red)	ISO A4 (yellow)	Constant +12V
A2 (yellow)	ISO A7 (red)	Ignition +12V
B5 (green)	ISO B1 (gray)	Right front (+)

⚠️ Attention: If the new radio does not support CAN-Bus, the steering wheel buttons and on-board computer will stop working. To solve the problem you will need CAN adapter (for example, Dension Gateway 500).

Common mistakes and how to avoid them

Even experienced car owners make mistakes when connecting the radio. Here are the most common ones and ways to prevent them:

• 🔥 Short circuit. Occurs when the connection is incorrect +12V to ground or speakers. Always check the wires with a multimeter before turning them on!
• 🔇 No sound. Most often caused by incorrect speaker polarity or an unconnected amplifier (in systems Canton).
• 🚗 Steering wheel buttons don't work. Indicates there is no connection with CAN bus. The solution is to install a CAN adapter.
• 🔋 Battery discharge. If the radio remains in standby mode, check the connection permanent plus (must go through the fuse!).

Another typical problem is noise in speakers. It may occur due to:

• Poor grounding (check the connection of the black wire to the body).
• Power interference (use ferrite rings on the wires).
• Incompatibility of signal levels (in systems with an amplifier).

If after connecting the radio does not turn on, check:

1. Availability 12V on the red and yellow wires (with a multimeter).
2. Integrity of fuses (usually F37 or F49 in the block under the hood).
3. Correct connection CAN-Bus (if available).

Connecting a rear view camera and other accessories

Many owners Octavia A7 install additional accessories such as:

• 📹 Rear view camera (connects to connector RCA or through CAN-Bus).
• 🎧 Sound amplifier (requires separate power and signal wires).
• 📱 Bluetooth adapter (for radios without a built-in module).

To connect a rear view camera to Octavia A7 connector is usually used FAKRA (gray or green). Connection diagram:

1. Locate the camera wire in the trunk (usually purple with a white stripe).
2. Connect it to RCA input radio (yellow connector).
3. Supply power to the camera from the reversing light (+12V when engaging reverse gear).

If your radio does not have a built-in video interface, you will need multiplexer (for example, Viseeon VC01). For audio amplifiers, use RCA cables and a separate power cable with a fuse (at least 10A).

⚠️ Attention: When connecting an amplifier, never use the wires of the standard radio for power supply - this can lead to overheating and fire. Lay a separate cable from the battery!

FAQ: Frequently asked questions about the Octavia A7 radio pinout

Is it possible to install an Android radio instead of the standard one? Bolero?

Yes, but you will need:

1. Adapter ISO-Quadlock for connecting power and speakers.
2. CAN adapter (for example, Dension Gateway) for operation of steering wheel buttons and on-board computer.
3. Setting the output signal for acoustics Octavia A7 (in some cases you need LC filters).

Without the CAN adapter, the steering buttons and the display of information on the dashboard will not work.

How to check if my car has an amplifier Canton?

Signs of an amplifier:

• Inscription Canton on the speakers or radio.
• No direct wires from the radio to the rear speakers (they go to the amplifier in the trunk).
• The presence of an additional block under the trunk shelf (usually with the inscription Amplifier).

If you have an amplifier, to connect a new radio you will need amplifier walker or replacing standard acoustics.

What should I do if, after connecting, the radio does not see USB or Bluetooth?

The problem may be:

• Unconnected wire CAN-Bus (responsible for activating functions).
• No power on USB port (check fuse F29).
• Incompatibility of the radio's firmware (update the software via the manufacturer's official website).

For diagnostics, connect the radio to the computer via USB and check the error logs (if the model supports this functionality).

Is it possible to connect a standard radio? Amundsen to another car?

Technically yes, but:

• Requires adaptation to CAN bus another car (often impossible without flashing).
• The speakers and amplifier must be impedance compatible (usually 4 ohm for Octavia A7).
• The climate control and on-board computer functions will not work.

As a rule, such a connection is impractical - it is easier to install a universal radio.

Where can I find the original pinout diagram for my version? Octavia A7?

Official diagrams can be found in:

• Repair manual Skoda Octavia A7 (for example, ElsaWin).
• Database ERWIN (subscription required).
• Owner forums (for example, Octavia-Club or Skoda-Community).

Also, circuit diagrams are often included with adapters. ISO-Quadlock from manufacturers (for example, Connects2).