Wires and power

I was wondering if i put in subs, amp, neon lights, etc where would the wires go to be hidden and also i dont want to connect it to the cig ligther postion how else would i get the power from? thanks for help

for amp,your gunna want a power lead Directly from the battery, as for lights, almost any 12 volt source will work, depending on the light. Best place to hide itis under carpeting, or behind trim.