Not sure were ignition wire is located to hook in to the turbo timer.

 

I'm sorry for taking this thread off topic, but can you sure more details of your setup please?

 

your turbos are likley water cooled, so no need for a turbo timer. Just fyi

 

If he has the greddy twin turbos, then it's only oil cooled.

 

If he runs full synthetic oil he should still be good.
I'm sure it's more then just a simple "ignition wire" to successfully get a turbo timer system working on a G.
Unless you a beating the **** out of your car, then shutting it right down, I think your wasting your time and money.