【Efficient transmission car antenna】: The 5th generation of the upgraded FM antenna car radio signal amplifier is designed with MMIC low noise devices,all metal housing and pure copper thickened signal cable,effectively shield the interference inside the central control,quickly locking the effective signal input,reducing noise, gain (peak) 25dB,allowing clearer and smoother sound quality. | 【Widely used】: Universal car antenna with DIN plug connector adapter, can power the original car fm antenna,12V ACC input, support FM and DAB+ digital radio signal amplification function,compatible with 99% of the market FM amplifier audio radio stereo media head unit receiver of cars SUVs boats marines RVs. | 【Reliable construction】: Radio antenna adapter with built-in antenna short-circuit protection, with waterproof blade fuse holder, automatic power failure if the original car antenna is short-circuited. Absolutely sealed to prevent the amplifier from not working due to poor contact over time. | 【Easy to install,Hidden installation】: install the antenna adapter in a suitable position behind the car stereo,e.g. behind a DVD or radio. Connect the female jack of this car signal amplifier to the male jack of the original car radio antenna, and the male connector of the amplifier FH to the sound receiving hole of the car CD or DVD. Connect the power cable to the ACC of the original car to supply power. | 【You will receive】: Package contains - 1X car radio signal power amplifier,1X 3M adhesive tape,1 quick connector,2 cable clips;our team is committed to supporting our valued buyers with reliable products and flawless With our 6 month warranty, 30 day money back guarantee and 24/7 friendly customer service, we are always at your service.