Story about 981/991.1 install Adapter-X Nov 01, 2019 Posted by: Paul Li 991.1 add mode switch, Adapter-X, gpsadapter adapter-x Thanks for sharing 981/991.1 upgrade multifunction steering wheel with Mode Switch support by Adapter-X https://rollexperts.tv/2019/07/25/2426?fbclid=IwAR0938uYibnJQCcWqzVjEGFHdGS-ERvuLabbN6DZVJ26HQGnY-o9V2fixaM