Does the remote module have to be placed on the host site as well?
The documentation only describes adding it to the remote sites.
1073cleveland.com is the host site, wqmx.com is the remote site.
This is how the zone is set up on 1073cleveland (in the Base Outline layout):
Here is how it is set up on wqmx.com. Also using the sidebar-a position, (same as on 1073cleveland.com). Also in the Base Outline layout.