Features: 1. 12pin Bluetooth AUX IN adapter, compatible with RCD210, RCD300, RCD310, RNS310, MFD2. 2. Compact size and lightweight design for portability and easy storage. 3. Made of high-quality ABS material, durable, wear-resistant, and sturdy. 4. Connects your phone or tablet to the Bluetooth module; select Aux on your radio to play music through car speakers. 5. Designed to meet standard specifications with strict factory quality control. Specification: Item Type: Bluetooth AUX-IN Cable Material: ABS Fitment: Not compatible with V and RCD200 Compatible with Delta 6/7 Compatible with Premium 6/7, R100/110, RCD300/500, RCD-210/310/500 Compatible with RNS-300/310/510 Compatible with RNS MFD2 CD/DVD Compatible with Seat Radio CD-1/2/3, PN-1/3, RNS-4, SE359/360 Wiring: Red wire connects to positive terminal Black wire connects to negative terminal Signal receiving connector attaches to radio signal interface CD stereo must have the "AUX" button Package List: 1 x Bluetooth AUX-IN Adapter 1 x Microphone