Can only sympathize. It's a happenstance that you will meet often when you try to shoehorn a different drive from the original into an an enclosure. The LED activity light's socket on a flying lead will almost never be suitable (usually far too massive to fit between as well as across a pin array. The misfit with the SCSI ID connector is more puzzling, as it usually concerns a single six-pin (3 x 2) array, or two 3 x 1 arrays side-by side. Perhaps your drive and the socket(s) are on different spacings (there were two) in inches (0.1) and millimetres (2)?

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