Steering wheel interface module Diagram unit head connection power cables joying wire key aftermarket steering wheel control headunit install guide din connect cord av How to install aftermarket headunit
Steering Wheel Interface Module
Car head unit wiring guide
![Steering Wheel Interface Module](https://i2.wp.com/ae64.com/images-e41/20-pin_forward_RCA.jpg)
![HOW TO INSTALL AFTERMARKET HEADUNIT - a guide for 147, 156, and GT](https://i2.wp.com/www.joyingauto.com/pub/media/magefan_blog/3-7.jpg)
![Car Head Unit wiring guide](https://i2.wp.com/www.edugeek.net/attachments/forums/general-chat/15846d1352662031-car-head-unit-wiring-guide-car-audio2.jpg)