When installing an aftermarket radio into your car, an aerial adapter is often needed to enable connection of the original aerial for head unit to the new for head unit. This aerial adapter converts an aerial connection from DIN to ISO fitment. Features: brand new and high quality For installing aftermarket radio. Converts DIN to ISO. Easy to install. No cutting or soldering required. Specifications: for: Most car aerial fitments with the DIN connection. Color: Black Material: Metal & Plastic Item length: 35mm / 1.4in Internal diameter: Approx. 10mm / 0.4in Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!<br><br>Package includes(without retail package): 1 Antenna Adapter