1999 jeep grand cherokee ltd

I know thier must be a post like this somewhere but I am down to my last never, I had a remote start in my jeep that I purchased, after purchasing a new remote I could not get the thing to program. I decided to tear it out and install a new one, only to find out that they installed the toggle shut down switch incorrectly. never the less I am trying to locate the tach wire for a 1999 Jeep Grand Cherokee limited, according to the diagram it is tan/white located at the PCM, I found a lot of tan wires but none tan/white  could someone point me in the right direction.  I have installed a Python 560T  nothing fancy. The starter continues to start after the vehicle is running, I belive I had the wrong tach wire from the previous installation.  Thanks

If it is a 4.0 litre   

Tachometer

GRAY

(-)

COIL OR PCM LEFT SIDE OF ENGINE POS A7

If it is a 2.5 litre

Tachometer

GRAY

(-)

AT IGNITION COIL