Alright I'm selling the tpi system off my 88 firebird and I am going to include the harness. My question is how hard is it to remove the harness? I can handle from the firewall forward but am a little nervous about how much goes under the dash for stuff like the cel. I know all the person needs is to run the engine as the setup is going into a older roadster or something of that sort. Last question would be what color is the power wire to the ecm and is that the only wire I truly need to run the computer thats under the dash? Thank for any help I really will appreciate it!