Did those wires go to your Nutral safety Switch? If so two are for the backup lights. the other two which are purple? should be for the start position.
I just pulled the NSS plug and cable into the cabin through that gromett. I later washed up the gromet to degrease it, and filled the hole with RTV to keep out water and cold air.
I was just looking through my notes when I did this swap. the wire from the back up switch on the shifter, has a grey wire with yellow stripe, and a black with yellow-red stripe.
Looking at the back of the plug with the cover off, grey/yel strip, bottom right.
blk/yel stripe bottom left.
the two top pins should have a jumper across the pins. this just connects the two purple wires together.
the plug on the 300TD which is on the drivers side at the top of the carpet for the console cover. sort of above your right knee. mounted to a bracket.
bottom left pin, grey/yellow stripe.
bottom right pin, black/yellow-red stripe
top right pin, purple/white stripe
top left pin, purple (with a small purple wire) not sure what I ment by that when I scribbled that down
once you get in there it will make sense, (I hope)
.
when I cut the shift rods, I used a 10mm 1.50 Die to rethread them. the rods miked out to 9.60mm. so the threads won`t be as deep or raised as original. but so far hasn`t caused me any problems.
I cut 4 1/2 inches off 2 of the rods and 3 3/4 off the other one. But measure yours just to be sure.
Charlie