How can I keep the remote control (IR) receiver from the donor Mac?
Directions for wiring up the IR/sound board from the various PPC-based Takky donor Macs can be found in the Kan-chan FAQ, at the bottom of the page. As far as mounting the IR receiver, your best bet is probably somewhere near the top of the screen. The microphone slit has been suggested many times, although there’s really no inherent limitation to where you can mount it as long as you can find space and IR signals can easily get to it.