I'm installing navi in the wrx and it needs to splice into the vss wire. Anybody know which one it is? I've searched just about everywhere and I keep finding conflicting stories. Some say it's a green/yellow wire and others say it's a green/black wire. I have an 04 wrx.
Just for anyone who may search for this in the future. I finished installing it a few hours ago. For a 2004 WRX the vehicle speed signal wire at the ECU is the Green w/ Yellow stripe wire in the first pin of the first connector closest to the firewall. Same as the 2002-2003.