you are always asking for this or for that and at the end you never listen to the people trying to give you some informations.
but this is easy to answer:
Go to Gurtam.com
Klick to GPS Hardware / AVL Hardware, check the checkbox "Garmin Support", click to Apply filter and there you are.
Or just click the link: http://gurtam.com/en/gps_tracking/gps_h … ter=garmin
But as i know the "ohh here in Kenya budget is not so high", Galileosky and also Queclink are out of your budget for this.
Also you need the Garmin FMS cable (which is at round about 45 USD),
Than you will pay much more for Garmin HW because of low client base in Kenya.
Than your customer will see very quick that the navigation devices will be taken away by others (huge problem even here in germany).
Why you dont use a Smartphone for 70-80 USD, install the GPS Tag App and provider some case for the smartphone, a magnetic holder and a USB charger cable? Or do you think your customer will pay 90 USD for GPS Hardware, 45 USD for FMI cable, 150 USD for Garmin?
Politeness dictates it to write his name on a post