Hidden Clean Installation, Plug and PlayThis radar detector power cord adapter comes with a radar detector charging cable and a built-in USB buck module, making the installation process extremely straightforward. All you need to do is use a pry tool to open the vehicle's shroud that covers the auto-dimming rearview mirror connector. Then, insert the radar detector charger cable adapter connector into the 10-pin plug. After that, you'll be able to power the radar detector as well as car dash cam, GPS, and other devices, achieving a hidden and clean installation. Applicable ModelsYQMAJIM car radar detector power adapter is compatible with select Volvo and Polestar, etc. Vehicles must be equipped with auto-dimming rearview mirror! The same connector with different wiring method is suitable for different models, please confirm the model and check the 3-pin connector port before purchase! If you are not sure, please contact us. Includes RJ11&DC3.5 Radar Detector CableThis radar power adapter includes both RJ11 and DC3.5 radar cables. The RJ11 radar detector cable is suitable for various models like Uniden R1/R3/R4/R7/R8/R9, Escort MAX 360; Escort Passport 6800/7500/7500S/8500/8500 X50/9500i/Max X80/ C65/ SC55, Solo S2, Escort Redline. It's also compatible with Beltronics GX65/ Pro 100/Pro 200/Pro 300/Pro 500/ RX65/RX55/STi Driver/STi Magnum/Vector 995. The DC3.5 radar detector cable, on the other hand, is compatible with models such as Cobra RAD 350 380 450 480i XRS9370/955/5300/S7700; Uniden DFR1/3/5; Whistler 78se Cr97 Z11r. Built-in Hidden USB Buck ModuleThis radar adapter, which features RJ11 and DC3.5 connectors, has a built-in USB buck module output connector. This module has undergone a 48-hour continuous operation test at 5V 2A, proving to be safe and reliable. It's convenient for charging other devices like GPS or dashcams, offering non-hardwired power and a plug and play functionality. Worry-Free After-sale ServiceWe are dedicated to developing more models that can draw power from different spare interfaces (such as reading light, driver assist, rain sensor, etc.) to support more brands. Please search for "YQMAJIM" or get in touch with us.