What is the difference between an OEM radio and an aftermarket radio?
The difference between an OEM and an aftermarket radio is seen mainly in how it works with the car, not just the logo on the panel. That determines whether the fault can be eliminated…
Why does workshop specialisation matter when repairing factory audio and navigation?
When repairing a factory radio, amplifier or navigation unit, the most important thing is to identify the real cause of the symptom, not to swap parts quickly. No sound, a screen restart or a non-working GPS often result from...
How does OEM unit repair work without leaving the whole car at the workshop?
Repairing an OEM factory radio, navigation unit or amplifier usually does not require bringing the whole car to the workshop. In many cases, removing the module itself and sending it for bench diagnosis is enough.…
Can mail-in car radio repair be cheaper than a local workshop?
Mail-in car radio repair can genuinely reduce costs, but only if the fault is in the unit itself. If the fault can be confirmed on the test bench, the service is paid for…
What does the warranty cover after OEM car electronics repair?
The warranty after OEM electronics repair is not a general promise for the whole unit, but a description of the service department’s specific scope of responsibility. In practice, it is determined by what has been diagnosed, repaired…
What does contact with the workshop look like during a radio, navigation or amplifier repair?
Repairing a radio, navigation unit or amplifier usually starts with gathering a few details that matter technically to the workshop. The symptom alone is rarely enough, because no sound or a lockout message…
When does a repair of the radio, navigation or amplifier end with refurbishment, and when with replacing components?
In repairing a radio, navigation system or amplifier, the hardest part is not the soldering itself, but correctly determining what has actually failed. The same symptoms can be caused by a lack of power in the car, damage…
What happens to car audio equipment after it is delivered to the workshop?
Once the unit reaches the workshop, nothing happens by chance. First, it has to be established whether the problem concerns the electronics themselves, memory, a lockout, or communication with the car. This first stage often…
What should you describe before sending a radio, navigation unit or amplifier for diagnosis?
Before sending off a radio, navigation unit or amplifier, it is best to prepare a description that lets the fault be reproduced outside the car. The part number alone is rarely enough, because diagnosis also depends on the vehicle, configuration…
Factory audio in the car stopped working after flooding – what should you do and what should you not do?
After flooding, factory audio rarely fails in just one place. After contact with water, you must not test the equipment by switching it back on, because that is exactly when…
OEM radio takes a very long time to start – is this the beginning of a bigger fault?
The OEM radio is usually the centre of multimedia and communication in the car, so a slow start affects more than the radio itself. If startup has clearly become longer, it is usually not about...
Car radio locked after disconnecting the battery – what does CODE or LOCKED mean?
After disconnecting the battery, the radio, navigation or infotainment system may request reauthorisation. Most often the display shows CODE, SAFE, LOCKED, WAIT or ENTER PIN. Not every such message...












