There is an iGO9.ini file included with the speecam files in the download. It contains only the text required for the replacement of speedcam section within your own iGO9.ini file.
You need to open your own iGO9.ini file in the \project_config folder within the data.zip in Notepad from within WinRar or one of the other archive programs or simply extract it from the data.zip so you can update it. copy all the text within the iGO9.ini file I provided and replace the complete speedcam section within your own iGO9.ini file with that text. This will ensure that all the warnings will be announced correctly.
Then you need to update the file within the data.zip if you extracted it, or the archive program should prompt you to update it after you save it if you did it in situ.
Hope that helps.