Squeezebox Bolder Mod Question


I see from the Bolder website that if I do the mod (looking at digital only), I need a 3.5 volt power source to go with the 5 volt (if I am reading correctly). I already have A Channel Island 5v power supply, so really want to keep it. The site says that they will introduce, soon, an adapter for a 5v power supply to go to 3.5 volts. Can someone shed some light here. Are there two power inputs (3.5v & 5v) to the modded Squeezebox?

I'd appreciate some guidence.