Is the only cable available to marry my AC180 to my B80 the aviation to DC7909? Do you have them or alternative suggestions? Also why didn’t the AC180 have 2 aviation portals as many others? THANKS SO MUCH!!

The DC7909 is the only option for your unit. The AC180 does not have an aviation port because it was designed as a simple, low cost budget unit with good performance. There are several higher cost units with the aviation port feature.