ls 2 wireing

[nsb29]

Thanks for all the help have ben to all the places you all have recommend have most of it figured out, with lti swaps 2010 Camaro and sum printouts my sun got me from his work on the 09 g8 but where does the start wire from the ignition switch go ? the g8 has it going to the BCM not using the BCM I assumed it would go to the ECM but no one shows it Im also unclear on the speedometer wire coming from the TCM does it go to the ECM and thin to the speedometer ?