Our service is personal, not automated, so if you are not sure which numbers to give, provide us with all you see on the outside of the casing and we will check them for you.

We aim to respond by email usually within an hour, a little longer in the evenings and at weekends. These codes are all at our standard price of £7.95.

After submitting the form, you will be forwarded to our payments page. Note that your request will not be actioned until payment is received; our service is inexpensive but not free. We aim to give a good service, with the assurance of our money-back guarantee: If we are not able to supply the factory-set code for your unit, we will offer options on how to proceed, and we promise to refund you (less 95p to cover payment charges).

You need to pull the radio from the dashboard to read the numbers we need from its chassis - this will be on a printed label, engraved on the metal case, or both. Extraction 'keys' (often of the type shown here) are required to remove the radio.

Many Becker units fitted to Maserati have horizontal slots along the lower edge into which the keys are inserted until they 'click' - this releases the internal clamps, allowing the unit to be withdrawn. Don't be tempted to remove the radio another way, or by forcing it, as you will likely damage the surrounding dashboard trim. The keys make it easy - find them in motoring stores or online.

If you have any doubts about your ability to remove the radio cleanly, without scuffing the surrounding trim, or worse, we strongly advise you to visit a specialist radio installer or contact a good mobile installer. This advice is true for any vehicle, but damage to higher value cars can be prohibitively expensive to put right.

This independent website provides useful guidance on how to remove car radios and sat-nav units from vehicles.