Check the original car stereo connection of your car before replacing it with an aftermarket car radio. You’ll need this aerial adapter if the original aerial fitment is an ISO head unit while your new radio is a DIN one. This aerial adapter converts theoriginal ISO connection to aDIN plug. Features: 100% brand new and high quality For installing aftermarket radio. Converts ISO to DIN. Easy to install. No cutting or soldering required. Lantern body. High quality. Specifications: Compatible: Most car aerial fitments with the ISO connection. Color: Red Material: Metal & Plastic Item length: 45mm / 1.8in Max 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 4.Check the original aerial fitment of your car before buying. Package includes(without retail package): 1 Antenna Adapter