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Vauxhall Astra radio code from your serial

Older Astra radios, like the CDR 500 and CDR 2005, have a serial starting GM on the label. Check it for free and get your Vauxhall Astra radio code.

Where do I find it?
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Free check · No account needed · Help finding your serial · Send us a photo instead

  • Free check first. See the first number of your code before you pay.
  • Code in seconds. On screen straight away, and by email.
  • Money-back guarantee. If the code doesn’t work, we put it right or refund you.
  • £9.99, one price. Secure checkout, no account needed.
Radios we cover
  • CDR 500
  • CDR 2005
  • Blaupunkt
  • Bosch
  • £9.99one price per code
  • Freeserial check before you pay
  • Secondsmost codes appear straight away
  • Money backif the code doesn’t work

Which radio is in your Vauxhall Astra?

Vauxhall fitted different radios over the years. Find your Astra’s years below, but go by the serial: radios are often swapped, and the free check reads it for you.

YearsRadiosSerialCode
1991–1998Astra F Vauxhall cassette and CD radios 14 letters and numbers, usually starting GM Instant
1998–2004Astra G CDR 500, CDR 2005 and Blaupunkt-made radios 14 letters and numbers starting GM Instant
2004 onAstra H on CD30, CD70 Navi and later radios No code to type in Not availableThese radios don’t ask for a code you can type in: they have to be matched to the car, which a Vauxhall dealer or specialist does.

How to find your Vauxhall Astra radio serial number

The serial isn’t shown on the screen: it is printed on a label on the radio itself. The serial tells us exactly which code your radio needs.

Where it is

On the label

  1. The serial is not shown on screen.
  2. Take the radio out with radio removal keys (some have extra screws to undo first).
  3. Copy the serial from the label: 14 letters and numbers starting GM.

Take a photo of the label rather than copying it by hand: it’s easy to mix up 0 and O, or 1 and I.

RADIOPush both keys in until they click, then pull the radio forward

Most radios slide out with a pair of radio removal keys (a few pounds from any car parts shop). Push them into the slots on the front until they click, then ease the radio forward. Some have screws to undo first.

Tips for your Vauxhall Astra

  • The serial isn’t shown on screen. Take the radio out with radio removal keys and copy the serial from the label.
  • You only get 10 tries on a CDR radio, so please don’t guess.

What your serial looks like

  • GM0205Y9019162 Vauxhall CDR500 / CDR200514 letters and numbers starting GM Instant
  • BP3782R3701682 Blaupunkt / Bosch14 letters and numbers starting BP, BO or PO Instant

Can’t find it or can’t read it? Send us a photo of the label: £9.99, with a full refund if we can’t find your code.

How to enter your Vauxhall Astra radio code

Once you have your code, key it in like this. Your order page shows the same steps next to your code.

  1. Hold AS and switch the radio on. The screen shows SAFE, then 10 - - - -.
  2. Buttons 1 to 4 set each number.
  3. Hold AS until it beeps.

If your Vauxhall Astra radio says LOCKED, WAIT or SAFE

Each wrong code makes the radio wait longer before the next try, and some radios lock for good after too many. Don’t guess: get the right code first, then follow the steps for your radio.

RadioWhat to do
Vauxhall CDR500 / CDR2005You only get 10 tries before the radio locks for good, so please don’t guess.
Blaupunkt / BoschAfter a wrong code, most Blaupunkt radios make you wait before the next try, and the wait gets longer each time. Leave the radio switched on until it asks for the code again.

What LOCKED, WAIT and SAFE mean, and how long to wait →

Why we use your radio’s serial, not your number plate

A radio code belongs to the radio, not the car. A dealer usually looks it up from the Vauxhall Astra’s number plate or VIN (the 17-character number in your logbook), which only works if the car still has the radio it left the factory with. Radios are often swapped under warranty, upgraded, or changed by a previous owner.

The serial number is printed on the radio itself, so the code we give you matches the radio in front of you. It is also how we can check it for free before you pay. Main dealers often charge £30–£130, and you usually have to book the car in.

Vauxhall Astra radio code questions

Where is the serial on an Astra radio?

On the label on the radio. Take the radio out with radio removal keys (some have screws to undo first) and copy the 14 letters and numbers starting GM.

My Astra H radio says it needs a code.

CD30 and CD70 radios don’t use a code you can type in. They have to be matched to the car with the car’s security information, which a Vauxhall dealer or specialist can do.

How much is a Vauxhall Astra radio code?

£9.99 per code. The free check comes first, so you only pay once we know we can do it, and you get your money back if the code doesn’t work.

How long does it take?

Most Vauxhall Astra codes appear on screen the moment you’ve paid, and we email you a copy. If yours has to be looked up by our team, we email it within 2 hours and tell you before you pay.

What if the code doesn’t work?

Check the serial first: 0 and O, or 1 and I, are easy to mix up. Still stuck? Tell us from your order page and we’ll put it right or refund you in full.

Another Vauxhall?

See every Vauxhall radio we can unlock on our Vauxhall radio code page, or pick a model: Vivaro, Movano, Corsa.

Updated September 2026