This is an updated version of the detailed instructable
by this device's inventor, Ladyada. The updated version has some extra components. Questions about this device should be directed to Ladyada's forums
, and the project site
has a similar how-to.
This instructable now covers version 1.2 of the kit as well. Version 1.1 and older have green PCBs, and the version 1.2 is all white. The only major difference in 1.2 is the R5 resistor placement.
Step four on resistors has more information about it. Other than that, you can follow the further directions without worry.
Also, if you do have a v1.1, there's a slight modification to make it work with new iPods. In version 1.2, the modification is simplified.
You can buy the v1.2 kit at the MAKE store
This kit is great for soldering beginners. To learn the basics of soldering check out this great guide
by noahw. Also, here's a good video tutorial
from the MAKE blog.