Doing LS Swap - I have no idea what I'm doing!

[EagleChief]

Got a bracket made for the fuse block. Also ordered the gas pedal adapter bracket and got it test fitted. I painted them both last night (flat black) and will hopefully get some time tonight to install them.

One question I have: where do you guys install the TAC module? I'm guessing it goes under the dash somewhere, right? The harness that goes from the pedal to the module is not very long, so I don't see the module going in the engine bay. The second part to this question, how do you fish the TAC plug from the wiring harness through the firewall? I really don't have anywhere that I can get the plug to fit through. I guess drill a new hole in the firewall?