Related Clues:

• Advertising choice
• See 17 Across
• Ham medium
• Part of a media planner's buy
• Dash device
• "Fireside chat" medium
• AM/FM apparatus
• Auto accessory
• It may be waterproof for the shower
• Cockpit need
• Woody Allen's ''___ Days''
• Airwaves medium
• You may find a ham on one
• Active beginning?
• Communication medium