Problem changing front trunk/hood latch

[mountainman]

Microswitch in front trunk mechanism ceased to work reliably, so got a complete new assembly to switch out. Thought I could do it without removing bumper cover, but I have a wire cable ( not the emergency release cable, but routes over toward the passenger headlight alongside of it) that is attached to the secondary latch (the one with the red plastic handle) that I cannot see where it attaches on the other end in order to undo it. Not sure just what it is for or where it goes. It appears to be a second emergency release for the secondary latch with the red plastic handle, but I have removed the headlight and cannot find the other end. Can't even find a parts breakdown that even shows the cable. Anyone know what it attaches to on the other end and if the bumper cover needs to come off to access it?
This is on an 04 boxster S le