Before You get started you will need the following items:
Phillips scredriver,
wire strippers/crimpers
10mm wrench/socket
butt connectors

Note: The brown wire, and the three female conecters on the TT harness will not be used in this installation.




Here is all the stuff, TT with wiring and TT harness, make sure everything is in good condition before starting.



Note: you may want to disconnect battey, but I like to listen to music while I work so I took the risk and didn't have a problem.

Start by removing the drivers side lower steering wheel column cover and the lower dash piece by the pedals. There are 2 screws on the the bottom holding the lower dash piece and 3 clips that pop off at the top. The steering wheel piece is held on by 3 screws remove them and it should come off in 2 pieces.

Once this is completed you should see this wiring harness:



This harness is a little bit of a pain to get off because the clip to get it off is on the backside. I used a screwdriver to push the clip down while I pulled it off. then you can plug in your TT harness into it, route the wiring where you want to mount your TT.

To ground your TT hook the black wire with the "O" on the end of it to this bolt:


Now on to the parking brake interface wire. Its the purple one BTW, Unscrew these in your center console:


Lift it up from the back and the 2 clips in the front will pop out and you should see this:


hook your purple wire to the wire comming off the E-brake. I removed all the tape around the E-brake for easier installation. I also heat shrinked the conncetion to prevent corrosion/shorting. Throw your center console back on and route the E-Brake wire where your TT is going to be mounted.



I monted mine in the center tray by routing the wire behind everything and cutting a smal hole in the back of it. To remove just unscrew the 2 screws and it will pop off.



I didn't have a dremel so I just used a utillity knife to cut out the hole. Route the wire through connect everything and you should have a working turbo timer. I used double sided sticky tape to mount it in place. I bought 3m, the stick pad that comes with it didn't work well enough for me.

EDIT: You may want to mount under this tray or on top of steering column if you're not comfortable cutting a hole in your cubby piece. However even with the TT in the cubby you still have room to put gum of a pack of smokes in there.

Please PM if you have any questions and I will update this thread. Happy modding!

 

Did you have to buy a harness besides the TT or was the one you bought Evo specific? I came upon an older Greddy TT and was wondering if this one will work without the harness. I am new to this so any info would help!

 

I just got th evo TT harness from extremepsi.com it works with most TTs. You can do it with out the harness but i'd highly recomend not hacking up your factory wiring.

 

Greddy installation instructions say to use the brown for parking and the purple for speed..

 

was this an ebay purchased kit?

 

^ nah, extremepsi.com

 

On all TTs I have installed (more than 100), the purple wire is for E-brake and on auto TTs, brown is for speed. As this is not an auto TT, brown is not needed

 

how long did it take to install?

 

This is a greddy full auto TT Just hooked up the brown today and everything has been working perfect since the day of install.

 

a little over 15 minutes. Pretty easy to do.

 

i got a question, im using the greddy timer but i have a hks harness. how do i install?

 

Not sure if it will work but I do think that the harness work with most TT's so it should be the same as long as everything connects togther.