High quality! Active antenna base High gain through integrated amplifier (12V) AM / FM (FM) band Can be used on the vehicle roof (rear) perfect for replacing the rod antenna or as a replacement for a defective antenna base Internal thread M5 - suitable for all rod antennas from our range Required hole diameter / hole: 14mm Installation angle / inclination: 52 degrees The rubber seal on the underside of the antenna base ensures a perfect seal Compatible with manufacturer / model:for Opel G / H, C / D, Meriva A, C, , B colour:black material:Plastic + Metal Package Contents: 1x antenna base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.