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Installing Highway 300Di with an active FM antenna - Knowledgebase / In car radio / Highway 300Di - PURE SUPPORT

Installing Highway 300Di with an active FM antenna

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Highway 300Di provides a DC path to allow the connection of a phantom power supply from the car head unit - through Highway - to supply any existing active aerial solution. This is always connected, so does not require the FM-pass through to be enabled in the installer menu. This menu option is only required if you want to listen to FM when Highway is powered.