Feature 1、Applicable Model: The USB Aux MP3 Bluetooth adapter is a replacement for Peugeot 206 307 406 607 807, replacement for Citroen C3, C5, C8, Berlingo, Xsara Picasso. 2、Function: Connected with the original bit harness, high fidelity decoding, anti interference, original car audio panel control, support steering wheel operation, safe and easy operation. 3、Mobile Memory: SD card slot compatible with standard MMC SD SDHC cards, USB interface compatible with USB2.0 and below standard mobile memory, such as U disk, USB card reader and driveless MP3 player, etc. 4、Supported Audio Formats: The digital music changer has a powerful audio decoding function, supports various encoding methods MP3 and WMA files. 5、Easy Instalation: Connected to the original car reserved box interface, simple installation, no damage to the original interior, can be placed in the glove box or storage box, easy to control. Item Type: Car Bluetooth Adapter Material: ABS Input Voltage: 11v-14.6V Dc Power Supply Operating Current: 200mA Standby Current: 3mA Working Temperature: -35°C~+85°C D/A Devices: 20bit Total Distortion: 0.05% Signal To Noise Ratio: 90db Frequency Response: 20hz- -20khz Application: Based on the original car audio protocol development, through the disc box harness installed on the original car audio host of the disc interface, simulated into a multi disc CD case (CDC), the original car audio host and multi function steering wheel can be fully controlled. Applicable Mobile Memory: SD card slot compatible with standard MMC SD SDHC cards, USB interface compatible with USB2.0 and below standard mobile memory, such as U disk, USB card reader and driveless MP3 player, etc., currently can support a maximum capacity of 16G memory. SD card and USB port playback priority is the same, in order of insertion. Supported Audio Formats: This product has a powerful audio decoding function, supports various encoding methods MP3 and WMA files. For the best playback quality, it is recommended that you give preference to MP3 and WMA files with high compression ratio. Installation: 1. If the original car has an original external CD disc box, has occupied the original car disc box interface, if you need to continue to use the original car disc box, you need to use a special cascade cable, insert the original car disc box cable plug into the cascade line of this product (only some models), in order to continue to use the original car's disc box, the connection method is shown in the previous installation diagram. 2. After installing this product, turn off the audio console and wait for 30 seconds until the MP3 disc box is powered off (French cars may take 3‑5 minutes). Insert the storage medium that already has the tracks, power on the audio, press the CD key (or DISC/CDC/MODE/SOURCE/AUX and other keys) 1‑2 times to to the playback mode of the digital disc box, at this time the indicator light of the digital disc box will be solid on, indicating that it has been powered on, and the audio screen of the car will be There are similar prompts like CDC, EX, CD1, etc., which vary depending on the model. 4. The audio host of Clarion series should completely disconnect the power of the original car audio (unplug the audio host) before starting the installation 5. Replacement for Peugeot, Replacement for Citroen, Replacement for Mazda and other disc boxes with CAN signal processors, please disconnect the power supply of the original car audio host before installation, live installation may cause the disc box to work normally or even the audio host is damaged. Among them, Replacement for Peugeot, Replacement for Citroen models, if the original car does not have a CD case pre installed, it is also necessary to configure the vehicle with special equipment, and the digital disc box can be used normally after turning on the "CD changer" and "accessory input" functions of the vehicle. Application: RD3, RM2, RB3 radio on the following models Replacement for Citroen C3, C5, C8, Berlingo, Xsara Picasso Replacement for Peugeot 106, 206, 307, 406, 407, 407 SW, 607, 806, 807 Not Application: Not suitable for the PU-2471A and for the RT3 Navi. Package List 1 x Digital Music Changer1 x Cable 1 x AUX Cable Note In order to ensure the smooth installation of this product, it is recommended that you read this user manual carefully before installing. The installation steps of this product vary depending on the model, in order to protect your rights and interests, it is recommended that you go to a professional car audio shop or 4S shop to install. This product is only suitable for the installation of original or modified audio hosts with disc box interface, and different brands of models or audio hosts use different models of disc boxes.