Updates to my Expressway RSA/Lay-by Custom POI (ver 5)
Changes:
- Driving on one side of the expressway should no longer trigger false alerts of R&R stops on the opposite lane.
- Inclusion of an additional, separate trigger GPI file for the visual and audio alerts. These trigger points are placed 1km from the entrance to the RSA/lay-by entrance. You will note that an extra custom POI list will show up in your GPSr as "RSA Trigger Points". The trigger point POI is not meant for navigation; it only contains the audio clips and proximity parameters in them.
- Removed all proximity alerts from actual RSA/Lay-by POIs. You can still navigate towards these RSAs and Lay-bys, however.
- You will be alerted only once when you pass the trigger point (1km from the slip road entrance).
- Supports audio alerts for Nuvi 2xx models
- Separate icons for RSA and Lay-bys. Single, common voice announcement serving both RSA and Lay-bys (smaller file space)
- Embedded JPG files of most (not all) rest stops.
Instructions:
1. If you have installed any of my older versions of the RSA GPI file, delete it from your unit or SD card.
2. Download the attached RAR file and extract the files into your computer.
3. Choose one of the following - the MP3 or WAV version. Users with Nuvi 3xx, 6xx and 7xx can use either format but Nuvi 2xx owners must use only the WAV version.
4. If you have an SD card, it's better to place the desired GPI file into your \Garmin\POI folder on your SD card. Boot your unit and your Nuvi will automatically detect the presence of the new GPI file.
5. When prompted whether to copy the Custom POI into your Nuvi, tick "Don't ask me again" and choose "NO". Your Nuvi can read custom POIs from the external card without having to read from the internal memory.
Known issues
1. This custom POI was tailored for MFM maps. It may not work properly with MSM maps.
2. A few RSA waypoints are placed on the road itself instead of the entrance to the slip roads leading to the RSA/lay-bys. This is because some R&R stops still don't have a mapped slip road (in MFM v1.34). By locating the waypoints on the expressway road, it ensures that the R&R points give off a proximity alert properly.
3. Audio announcements will not work with GMXT based devices due to limitations of the GMXT software. If you still wish to install this custom POI into your GMXT, choose the MP3 version for its smaller size (compared to the WAV format).
Please post or PM me feedback if you encounter any errors.
Enjoy!
Will note your suggestion for the PLUS icon and perhaps, a surprise feature for my next release! 
