Ive searched all over and dont fully understand what i need to do. For the shift light all im going to use is 1 simple led. Second is the launch control i found this on tuners http://www.dsmtuners.com/forums/420a-engine-management/381707-help-2-step-schematic-megasquirt.html VelocitàPaola explains it just want to verify that is correct.