Wheres the closest dome light, courtesy light, or ignition light wire, that is near the head unit or fuse box? I'm using it for a courtesy light feature for a footwell lighting kit

Welcome to NICO! Sorry to hear that your car is having trouble. I'm not all too well versed in your vehicle, but can offer an option for you.

Here at NICO, we have Factory Service Manuals available free to members. Take a look at the link in my signature and find the FSM for your car and you'll have all the info you'll ever need to make the repair and try to diagnose it for yourself while help is on the way.