so we learn something new everyday.. hehe The wiring harness only applies to 92-95 as far as MB "KNOWS".
If it isn't an issue then great.
It still helps to be informed of these things.
I leanred that they are ok on 90 - 3/92 as far as everyone knows.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.