wierd tach signal hookup

I am trying to install a remote starter into a 1998 Mercury Villager. The manual says to wrap the tach signal input wire around the high ignition coil wire 5-7 times. I have installed remote starters in my other cars before, and the tach signal wire was always soldered directly to a bare wire in the ECU or tachometer, not just wrapped around the ignition coil wire. Has anyone installed a remote start with this kind of tach signal input before? Do I just wrap it around the wire coming from the ignition coil to the distributor? What wire should I use to coild this input wire around?

spakplug wire 

What alarm is it, probably phoenix digital? Next alarm make sure you are getting a better one.Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Yeah, it was a cheap one that I got for my beater. I think the box had Cyclone in red lettering on it. The manual has a silver Jaguar on the front. It was an impulse Ebay purchase. I will definitely get a better one next time from a real company. I will try the sparkplug wire and hope it works. Thanks.