Is a used salvaged radio a safe choice for a driver?
A used salvaged radio can be a sensible replacement, but only if it suits the car not just mechanically. In many cars such a unit works with the onboard electrical system, the display and…
Blog posts in the Radios category.
Practical guides to factory radios, navigation systems and amplifiers.
Why does simply replacing the unit with a used one not always solve an OEM radio problem?
An OEM radio rarely works as a completely stand-alone unit. If, after a fault, you buy a used unit without checking the car and parts compatibility, you may move the problem rather than remove it. In many…
Why is it worth repairing the factory car radio instead of fitting an aftermarket unit?
A factory car radio is usually more than just an audio player. It supports the screen, navigation, Bluetooth, sometimes the reversing camera, parking sensors and some of the car's settings. That is why a fault in such a unit does not…
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…
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...
Car radio drains the battery while parked – how to identify the fault
A flat battery after standing does not automatically mean the radio is at fault. In practice, the current draw must be confirmed after the car has gone to sleep, and then the specific circuit identified. Replacing the battery alone...
OEM radio works, but the screen remains dark – what could be faulty?
When an OEM radio plays, responds to buttons or communicates with the car, but the screen remains black, the problem is usually not the whole unit. Most often the display path fails,...
OEM car radio resets to the logo – what does boot loop mean?
Boot loop in an OEM car radio means the unit is stuck in a startup loop, showing the manufacturer's logo and then restarting from the beginning after a moment. The problem affects factory radios, navigation and multimedia units...
Black screen in an OEM car radio – the most common causes and possible solutions
A black screen in a factory radio or navigation system does not automatically mean a faulty display. The same symptom may be caused by the power supply, communication, software, a security lock or a fault in a related module. The key is to determine whether…
How to tell a factory OEM radio from an Android replacement?
Telling a factory radio apart from an Android replacement is rarely possible from the screen appearance alone. In workshop practice, part numbers, connectors, communication with the car and response...
When can buying a used car radio be more risky than repair?
A used car radio often looks like a simple spare part, but in OEM systems it can be part of a larger vehicle network. The radio, navigation, amplifier or screen may be linked to the number...
What most often damages the electronics in an OEM car radio?
An OEM car radio is part of the vehicle network, not just an audio device. One fault may involve the power supply, amplifier, screen, data memory or communication bus. That is why the symptom,...