tach sensor wire? where is it?

[anthony96]

I installed a remote starter works great in tachless mode but would feel better if i had it hooked up to the tach. the color i got from the wire diagram of bulldog security said it was tan/yellow wire on the POWERTRAIN CON MOD. if its the coil pack where the plug wires are, these are not the wire colors i have, I have three yellow and one red. can anyone help tell me which is the tach sensor wire.
thanks in advance
anthony96

 

[anthony96]

if anyone is interested i did a GOOGLE search and found the info on www.12volt.com
turns out it is the yellow/white wire at the coil