Is the antenna for a CB? I've got this set-up for a CB in my car. I only put the antenna up when I want to actually use it.
FireStik MK-748R Trunk lip mount kit

FireStik K-1A Push-n-Twist quick disconnect

3' FIRESTICK II TUNABLE TIP BLACK

Then I got a pair of these and stuck them to the underside of my trunk lid with 3M adhesive strips and the antenna stays there great.
15/16 (A), 1 3/8 (B), Capacity - 3/8 to 5/8 dia., Full Vinyl Coating, Spring Steel, Gripper Clip (1 Each)