OBD2 port Volkswagen Golf IV (1997 - 2004) - Find your plug !
Amazon.com: Car Radio Audio Stereo RCN210 for VW Golf MK4 Polo Passat B5 USB MP3 AUX SD Build-in Bluetooth with CD Player + Adapter with Canbus Simulator : Electronics
Check Engine Light is On: 2017 Volkswagen Golf Alltrack S 1.8L 4 Cyl. Turbo
VW Golf Mk4 Diagnostic OBD2 Port Location Video - YouTube