Hi can I use xps-AB with variax 300... When I connect the xps-AB box it works find with AC 9v 2000mA on my variax 300 ...My xps mini still work but there was a razle in the box so I opened it and find a piece of silicone I took out and the xps mini still work. What is this piece for....By the way I have been reading different sites where you can by this xps-AB box and some says that the xps-AB will not work on variax 300 and other says it will work... But it depends maybe on the power supply?I am using the one from the xps mini...