SCSI/SATA power connector with Activity LED connection?

I'm making myself a multiple disk enclosure for SATA drives.
Having bought the first two drives, I find there's no LED
activity connector on the drives. Inspection of the datasheet
shows it's one of the connections on the power connector to
the drive. I can't find any pigtail SATA power connector
which brings this connection out, nor can I find any SATA
power connector which I can wire up myself. Anyone know if
these are available anywhere?

--
Andrew Gabriel
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