ZL1 accessories ignition switch wiring

[Annatar]

CONTEXT
I built in an aftermarket Camaro 2013-2015 Europe navigation system.

The issue I have been facing is that I have not connected the 12 V power wire to the ignition accessory line, so I have a parasitic draw of 0.5 A.

Where can I find an electrical schematic of the ignition, or can someone here tell me which wire is the accessory ("ACC") wire on the ignition lock? I don't mind paying for a commercial electrical wiring diagrams for the ZL1 if that is the only option, as long as I know what and where to order.

[FasNuf]

Some people may want to know if it's a push button start or key. I have the service manuals for the US cars but just received all 5 volumes and it is a ton of information. I took a peek but don't see for sure what you need. Can you explain why you want to go off the ignition switch and not the accessory relay in the fuse box? Since it's navigation, can't you add to the radio circuit?

Mark