Direct Connection via CD changer port with CD quality sound. Control music files from your car radio panel or steering wheel. Supports USB flash drive, SD card, and 3.5mm auxiliary input. Built-in high-quality MP3/WMA decoder and amplifier chips. No signal interference, no battery required, and easy to install and use. New and high quality.Installation: 1. Turn off the car engine and remove the key from the ignition. 2. Remove the car radio from the dashboard to access the back of the unit. 3. Locate the CD changer port and securely connect the car MP3 interface cable. 4. Insert a USB stick or SD card into the car MP3 interface. Turn on the radio and press the CD (Disc/Mode/CDC/AUX) button until "CD-X-X" appears on the display. Test left and right audio channels and verify track control functionality. 5. Once testing is complete, reinstall the radio and secure the MP3 interface in a suitable location.Item Type: Cables, Adapters & Sockets Voltage Input: DC 12V Signal-to-Noise Ratio: 95dB Maximum Current: 600mA Frequency Response: 20Hz20kHz Working Temperature: -10C to 80C Total Harmonic Distortion: 0.01% Color: Black + Yellow Material: PVC + Copper Compatibility: 6+6PIN interface Note: Verify product compatibility before purchase. If uncertain about vehicle compatibility, contact customer support. Do not purchase if your vehicle is not listed.Compatible with: 4Runner 20032011 Avalon 20052011 Camry 20042011 Venza 20092011 Celica 20032005 Corolla 20052011 Cruiser 20072010 Highlander 20042011 Land Cruiser 20032011 Mark X 20052011 MR2 20042010 Vitz 20062010 Yaris 20062011 ES 300/330 20042011 IS 220/250/300/350 20062011 GS 300/400/430/450H 20062011 GX 470 20042009 RX 460 20072011 LX 570 20082011 SC 430 20052010 Compatible Radio Models: Matsushita models: 11816, 11817, 11828, 16852, 12821, 13803, 13829, 16852, 17006, 17828, 50323, 51825, 53816, 53818, 58814, 58816, 58827, P1500, P1733, P1740, P1750 (LX470), P1754, P3745 (Land Cruiser), P3803, P3914 (Prado), P3916, P3918, P3926, P3930, P3946, P6827, P7514, P7809, P7820, Q58816, A56828, A56829, W58831 Note: This unit does not support radio models with navigation or DVD functionality.Package List: 1 x 1.6m Aux Cable Content limited to the above; other items not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: 13 cm.