Bluetooth sony autotadio?

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Use the Default Bluetooth PIN

Before you get too caught up in trying to find the Bluetooth passkey for your specific device, it's a good idea to start with one of the small handful of generic PINs. A lot of devices, especially small "dumb" gadgets with only one or two functions, use these. The most common PIN is four zeroes in a row, 0000. Two others you may encounter on some devices are 1111 and 1234. Try entering those when you're prompted for a PIN, starting with 0000, and most of the time, the pairing finishes successfully. If it doesn't, that's the time to start digging a bit deeper.

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