i have a multi card reader that i want to install into my g3 it fits where the optional zip drive would go the only problem i have is i do not know where on the logic board i can plug this in at it has four plugs on it two are grounds and theres one for the multi card reader and one for the extra usb port on it any help would be great. the model of the multi card reader is logisys all-in-1 internal card reader usb 2.0 embedded card reader part number FP521