Probably been covered before but this is my installation.
https://www.ukgser.com/forums/showthread.php/580756-Zumo-XT-Installation-on-RT?p=6290435#post6290435
https://www.ukgser.com/forums/showthread.php/580756-Zumo-XT-Installation-on-RT?p=6290435#post6290435