My son's 2015 XG500 Street apparently does not have a Harley-Davidson option for a Alarm or Security System. What was the motor company thinking?

I'm after one with GPS to get installed; in googling there does not appear to be any consistency with the results it appears all the recommendations are paid hits, results, etc., and not by anyone whose actually running one or the other...

Does anyone have any first hand experience, recommendations for a alarm system with GPS for a 2014-2016 XG Street, that didn't have an alarm option; possibly one I can buy online, install myself and setup the GPS Service myself?

thanks in advance.