Gilles is right, here is a picture from my engine that is out for valve chain pad replacement.
Both of these cables attach on the same post at the rear of the alternator.
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Grant
Arctic Silver 2000 Boxster S - bought with a broken engine, back on the road with the engine replaced
Green 2000 Boxster 5-speed and 1978 928 auto
1987 924S 5-speed (Sold) - Blue 2000 Boxster 5 spd (Sold)