Can not change, change too much, need to add digital decoding and other systems, so it is better to buy a new cost. Now buy an original car navigator price is not very high, not only has a USB interface, but also can insert a card, play DVD and other functions. Much better than retrofitting.
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If you really want to listen to music in MP3 format, there are two ways: one is to burn a CD in MP3 format, and the other is to listen to a car charger with a radio.
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If it is the car CD to change the home, if the original has a USB interface function, and is external, you can use the tail line to modify, auto accessories store.
can be loaded
USB interface, the universal serial bus, is a serial bus standard that connects a computer system or controller system with external devices, and is also a technical specification for input and output interfaces. It is widely used in information communication products such as personal computers and mobile devices, and extends to photography equipment, digital television (set-top box), game consoles and other related fields.
If the car does not have, for convenience, you can install a conversion connector from the cigarette lighter interface.
You mentioned the USB interface, I want to be the function of mp3 playback, but the ordinary car CD does not have the mp3 decoding chip, so even if the USB port is installed, it is useless, and the circuit board must be transformed, which is very troublesome