Lil'John

I've gone through the wiring diagram for my 2004 LQ4 and I'm not 100% positive what wires I REALLY need to create a "tuning" harness. I know I need the ALDL wiring but from there, clear as mud.

I know I can get a tuning harness from an aftermarket place but I've got a spare harness I'd like to cannibalize

2xLS1

iTrader: (25)

12V Bat, 12V Ign, Gnds, Data. All on the blue connector. Put a switch on the 12V Ign so you can power it up after the 12V Bat is applied.