Chosen Solution

Hey I’m just wondering about the small flex cable assembly that includes the power/lock button and volume buttons and is glued to the back under the circuit boards. I can find parts for the 2G but I’m wondering if the same part will work in 3G iPod touches. I guess it’s pretty rare for these parts to need replacement but water damage can harm the button functionality. I wonder if it’s worth making a guide for it.

Yes, it looks like that’s the case. At least, the photos for the two iFixit guides are identical: 2nd Generation 3rd Generation

Has anyone found a definitive answer? Are they compatible?

I repaired an iPod Touch 3G with the 2G power cable and all the button work. I’m convinced it’s the same cable.