Finding the S/N on a Ka
To generate the correct unlock code, you will need the radio serial number from your Ford Ka's head unit.
You may be able to find it on the radio body. Common labels to look for: S/N, SN, Serial, Serial Number.
1. Get the S/N from Ford Ka's Screen
Some Ford radio models are able to show the serial number on screen using button combinations. The method depends on your specific radio model.
Ford 6000CD
- Turn the ignition to ON and power on the radio.
- Press and hold preset buttons 1 and 6 simultaneously.
- The display will cycle through several codes – write down the serial number that appears.
- Confirm with button 5 or ENTER if required.
Note: On the 6000CD MK2 variant, use the # button or preset 5 for confirmation.
Ford 4500 RDS E-O-N
- Press and hold preset buttons 2 and 6 simultaneously.
- The serial number will be displayed (format:
M123123). - If button 5 does not confirm, try the TA button instead.
Ford Sony MP3
- Press and hold preset buttons 1 and 6 simultaneously.
- The serial number appears on screen (e.g.
SOCD6X8V404077). - Hold the center button for 3 seconds to confirm.
Ford Travelpilot EX / NX / FX
For Ford navigation units:
- Check for a pull-out label on the right side of the radio unit.
- Alternatively, press and hold the SELECT button on the right turn-wheel.
2. How to Find the S/N on the Radio Body
The serial number is usually found on a sticker attached to the radio casing.
Step 1: Turn off the vehicle.
Step 2: After that, take off the surrounding panel.
Step 3: Then unscrew the radio brackets.
Step 4: Carefully slide the unit out partially (Be careful not to damage the cables).
Step 5: Look for the serial number on the rear of the unit.
Step 6: Write down the full number carefully and come back to our website so that we can generate the code.
Important: Don't mix the Serial Number for the Part Number!
How to Pull Out Your Ford Radio
If on-screen display doesn't work, the radio must be removed using Ford radio release keys — thin tools that slide into the rectangular slots on each side of the unit. Once inserted, the clips release and the radio slides forward. The serial label is on the top or side of the housing.
Example: Ford Ka serial number label location
Common Serial Prefixes on Ford Ka Units
To unlock your radio, locate the serial number starting with M or V (e.g. V654321). TravelPilot EX/NX units have a pull-out label on the right side with a BP prefix.
Ford Ka's Most Common Anti-Theft Code Causes
Many owners encounter radio code issues on their Ka after power loss.
Below are the most frequent situations when this can happen.
Radio Lock After Battery Replacement
A disconnected battery is the most common reason a Ford Ka radio asks for a code.
Even a brief power loss is enough to trigger the built-in security system.
Other Situations
- Jump-starting the vehicle can reset the radio, requiring the unlock code.
- A fuse removal can cause the Ford Ka radio to request a security code.
- Installing a replacement head unit will require the original anti-theft code.
- After an ECU or software reset, the radio may lock.
Check These Free Methods
Before you pay for it, it's worth checking a few places where the code is often stored.
Some owners find their Ford Ka radio code without needing any tools or paperwork.
Here are the easiest things to check first.
Look Around the Dashboard
- In the radio manual, often on a separate code card.
- In the vehicle documentation provided with the car.
- Near the spare tire, where some manufacturers place radio labels.
- On the radio chassis if the unit was previously removed.
- On a label in the door pillar.
Can You Get a Ford Ka Radio Code from the Dealership?
Dealerships can retrieve your radio code by checking the vehicle records in their system.
They typically require proof of ownership before sharing the unlock code.
This is the official way to restore access to the factory radio.
Potential Downsides:
- The lookup is often not instant and may require waiting.
- Some imported or older radios may need extra verification.
- Dealers frequently charge a service fee (sometimes more than 100$).
- You may need to visit the dealer during business hours.
Now You Have the Code. How Entering Works?
Once you have the Ford's security code, you can type it in using the radio buttons.
Most radios display a "CODE", "ENTER CODE", or "----" message when they are locked.
You typically use the number keys to select each digit.
After entering the full code, the radio will unlock automatically.
To input the unlock code on your Ford radio:
- Turn the ignition to ON and power on the radio.
- The display will show "CODE" or "ENTER KEY CODE".
- Use the preset buttons (1–4) to enter each digit of your 4-digit code. Press each button the number of times corresponding to the digit (e.g. press button 1 three times for digit 3).
- After entering all 4 digits, press button 5 or ENTER to confirm.
Tip: On some Ford models (e.g. Sony MP3), you can enter the code directly using the numbered buttons instead of cycling preset buttons.
Ka's Radio Code FAQs
Many factory radios use a anti-theft code, but some versions require one.
Whether a code is needed varies by the factory stereo and the production year.
Free security codes are not easy to find.
Some service documents may help, but most codes require a database lookup.
The only free possibility would be to search your vehicle and its documentation to see if you have it written down.
Yes. Each factory stereo has its own unique code.
If you install a replacement radio, you'll need the code for that specific unit.
The most common method is to hold preset buttons 1 and 6 at the same time on Ford 6000CD and Sony MP3 radios. For the Ford 4500 RDS, hold buttons 2 and 6 instead.
Not all Ford radios support on-screen serial display. If the button method does not work for your model, the serial number is printed on a label on the top or side of the radio unit, which requires physical removal to view. See our full guide for all methods.
The following Ford radio models can show the serial number on screen: 6000CD, 6000CD MK2, 4500 RDS E-O-N, Sony MP3, and some Travelpilot navigation units.
Older Ford radios and some models without a digital display lack this capability. In those cases, physical removal is the only way to access the serial number label.