I found an adapter of the Silverado plug connector at the local U-Haul Store.

Diagnostic plug. Diagnostic connector. Data link connector.

The two parts of an audio connector are the jack and the plug.

An audio coupler is designed to attach to an audio connector and change it from male to female and vice-versa. Just like a converter allows you to plug in your connector to a different-size plug, a coupler allows you to plug in your connector to a same-shape plug: male to mail and female to female.

A banana plug is a single-wire male component of a banana connector.