Highly recommend the Killswitch for $30 at https://killswitchcentral.com/
Found F17 fuse slot (ECM Power Loads) with the 20 amp fuse is the one to put the killswitch in.
https://www.autogenius.info/ram-promaster-2015-present-fuse-box-diagram/
This was a great video to help me find the grommet and putting the wire through to the engine fusebox:
https://www.youtube.com/watch?v=xmIf8MAGfMY
