Okay... so I've already spliced the wires behind the radio for my radar detector and my FM Modulator.. and I'm pretty sure it's not safe to keep splicing off the same positive wire. Now I have plans to put in some neon lights inside the car and hopefully either install the switch or have it turn on every time I turn on my headlights.

Here's the million dollar question:

I opened up the panel and tried to find a wire to tap into (ie. the foglight switch) but I can't tell which one is the wire I should splice the positive wire into. Can anyone help me out here?