Simple questions that need answering!

[pod-noob]

First ::
if i use the 5v / neggative by the speakers ON a FAT psp, how much of a Resistor would i have to use to use a good amount of Wire + 4   0603 led lights.  please dont link me to a calculator for i dont know how to work them please just tell me what i need.


is there any where on the WIFI board i can solder too?

Or is there anywhere on the motherboard i can solder to that i wont need a resistor for? (i dont want the lights to burn out within a month or 2)