Blue, yellow, and red wires go to the connector for the TT and there is an extra white wire just kinda hanging around with a connector on it but nowhere to go. If anybody knows what this wire is for I would be eternally grateful as the instructions that come with it, well, they don't actually exist .

 

is it a white wire with brown stripes?

-joe

 

Nope, it's just plain old white. It's not the white/brown O2 wire coming off the TT, it's on the harness itself.

 

when i installed mine with the harness, it's plug and play..

let me check for white wire on mine

-joe