Usage Tips: This module is designed specifically for Pioneer radios. Functions via Bluetooth-enabled devices. No functional limitations on the car radio. Allows connection of an external audio source. Extends the existing radio to a wireless music receiver. Music playback is possible up to 10 meters. Features an 11-pin IP-BUS plug that connects to the CD player jack; mobile phone connects to the Bluetooth module. Low power consumption and long operating time. Compatible with all mobile phones and tablet PCs equipped with Bluetooth functionality. Simply plug the connector into the back of the radio and connect the two wires to a 12V power source. Pair your phone with the Bluetooth module and select Auxiliary input. Enjoy music from your phone or tablet through your car speakers (must support Bluetooth). Ensure the socket is designated for audio input. Type: Bluetooth AUX-in Adapter Number of Pins: 11 Pins Installation: 1. Bluetooth module connector: 12V 2. Red cable: 12V positive (+) 3. Black cable: 12V negative (–) Compatible with all DEH-P series radios featuring an 11-pin IP-BUS IN port, including: DEH-P2500R, DEH-P2600R, DEH-P3500MP, DEH-P6600R, DEH-P9600MP, DEH-P3100, DEH-P4100SD, DEH-P5100, DEH-P7100BT, DEH-P8100BT, DEH-P88RS-II, etc. Color: Black Material: Plastic Package Contents: 1 × Bluetooth Adapter Note: Color may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.