Sounds like #1. I just replaced #4 this afternoon. Pretty easy considering. All I had to do was pop the upper throttle linkage. The front 3 are a bear with the manifold in place.

Looking at the pins in the relay with 'x' as the locating post:

x
1 2
3 4
5 6

You can't see the numbers on the connector? I can see them in the picture you posted. Man, I hope you're not younger than me

Sixto
87 300D