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Depends what mods have been made. The Ron Francis basic kits shuts it off. Better for a beginner to test with it running.
For the OP, I would check with the local MVD as to what is required per state law.
I've always wire the brake and hazard circuits hot at all times where the brake light switch and hazard switch complete the circuit with the key off.
On the newer cars with push button Start, the start circuit is not active until the brake circuit is complete by pressing the brake pedal
The line is definitely hot whether on or off. I'm still trouble shooting it here and there to no avail. I'm going to run a hot line all the way back the the brake lights this weekend.
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