2000 f 150 remote start, tach wire

Hey Guys,

I am installing a Viper 160XV Remote Start system into my 2000 Ford F-150.   I dont have much knowledge about cars in general but I read a lot of posts here before I gave it a shot at installing it.   Anyway, I have read that the best tach wire is to use one of the wires from a fuel injector (any color but red).   Now the only question is how the heck do I get my wires from inside the cab through the fire block and into the engine compartment?

On a seperate note, Is the hood pin switch really required?   I can't just hook the wire from the unit directly to ground?  (i read a post where a guy had an issue with that).   in either case, the F-150 doesn't come stock with a hood senser correct?   So I'll have to install a hood pin swich to monitor the hood opening.

Thanks for all your help up to this point.   These Forums have been very helpful.

Thanks,

Well, now I know why a hood pin is important.   I never saw it that way.