12+ at light control

12+ permanent is usually the thick red wire at the fuse box or battery feed. LIN cable should be near the module/ECU you’re wiring into. What’s the car exactly?
There’s a permanent live at this rotary light switch. It’s okay if got my work van back now so have my tester. Was just a bored Saturday afternoon so thought I’d get some bits done.
 
For anybody interested in the future red and black is the permanent live. Got my work van back and got my tester on it.
 
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