I Have A 2 0 G5 17 And The Inside Looks A Bit Different To This Imac G5 17 Model A1058

Chosen Solution

I pulled apart my 1.8 20” as the airport wasn’t working, and was going to try the airport card from my 2.0 17”, but the 17” didn’t have the same card. In fact it appears to use the same card from the iSight models but without the tricky case design. Fan and ducting layout is different as well.

The part you need is this one for your 17” or 20” ALS system: AirPort & Bluetooth Card A1127,  Apple P/N 661-3614