All other Ad Type fields for Google AdManager can be configured as usual. Once the new Ad Type is used in an Ad Spec and has an Ad Price, Campaign Items can be created via Media Search and submitted to Google AdManager.
In order to access this feature, the System Administrator might need to manually add a new picklist value to the relevant slot fields:
Report Slots (AI)
Report Slots (Clicks)
Report Slots (Viewed AI)
Simply add a new picklist value named ‘Audio’ and assign it to the AdManager record type.