67 Dart Resto w/5.7 hemi

Hey Lime, question on your Hotwire harness. Supposidly there is 30" of wire that stays on the inside of the firewall that goes to the computer. My question is, is that true? , and is it excessive? ( seems like a lot of wire if you are going to put the computer somewhere near the glovebox). I hate having a big bundle of excess wire that you have to coil up and tuck away.