Tach Wire location

[debutis]

Well tomorrow myself and friend are installing my new hornet 554t alarm system and from looking through the installation guide, we're going to attempt to install this ourselves . Anyways, the only problem that we can see, is the tach wire. I need to know where to find the tach wire. Where Is it located? Is it a certain color? What should I look for?
Any help would be very appreciated!
Thanks in advance!

 

[XploderSport96]

I am assuming you need the tach wire for a remote start. You can use the odd colored wire off one of the injectors. Each injector has two wires. One of them will appear on each injector. Use one that is different. And make sure you sodder your connection don't t-tap it.