As someone succeeded in activating Speedcam voice with this skin?

In the Alert Point setup screen, the Speedcam voice option is greyed. It cannot be turned on. Everything else related to TTS works(TMC Fuel etc).
Spoiler: screen

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In this skin, there is a file called speedcam.zip however I read that one must have a file called tts-speedcam-eng.zip to work. I have added the file but same result. I also checked that the voice file had the nextgen speedcam block in the dictionary.

I have also read somewhere that speedcam voice is tuned off by the data.zip. I am at a lost on where to look next to solve my problem.

Any advice is welcome. Thanks