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Configuration file is a file named: GROMIPD3.CFG. Place it as shown below:

The format of the file: <CMD>= <VALUE> like: "s= d" or "s= 10" or "t= 45 65"
Use the configurator below for making proper CONFIG file.
Select car make:

Option name Default value Option value Description
g12Bluetooth Microphone gain. Adjust as appropriate. When echo is heard, just lower down the gain for 1 or 2 point. Max value is 15.

Result CONFIG file:

Download config file

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