I have the greddy full auto turbo timer and i'm trying to install. There is a blue wire, red wire, green wire, and black wire to a hanress. Thena purple and brown one to anothe harness and then a grey one which i think goes to the ebrake sensor. Can somebody please help, i'm tryin to install right now. thanks

 

What kind of car do you have? On mine it's
red to white (12v)
blue to yellow
green to blk/yellow
black is ground

the other 3 are for your parking brake release in case somebody tries to drive off with your car while its still running. I'm not hooking those up.

Try a search you will find more info about it.

 

2000GSRT is correct on the wiring brown to ebrake purple is speed sensor and the grey is not used