Hello Steven,
Understandable ...
but there isn't.
The plugs/connectors or harness ends are not labeled or numbered by the factory - for instance as indicated in the wiring diagram.
Once you put in the harness into the car the plugs/ends "find their way" where to go.
There are indeed a few confusions though.
For instance which plug/connector goes with which relais on the relais bracket on the left inner fender.
Or which of the plugs with 4 wires go to which device behind the dashboard? The clock or the blower switch?
This has not clearly been indicated.
Some "places" carry red labels, e.g. the outlet and plug that go to the column stalk. But all others are basically not marked.
Only way to identify clearly is by looking at the colors of the wires and compare those with the wiring diagram (see our Wiki).
Even more surprising is that the original factory wiring harness does not indicate which color coding each wire has ...
Only our "aftermarket" wiring diagrams have ...
My advice,
take you time, "block" the ones which are already clear, e.g. the connectors for the tail lights and head lights and so on. You can label those - even with numbers - in the same way as they are labeled in the wiring diagram. Then only the "obscure" ones remain.
Basically, only some of the connectors with 4 wires/openings are "left over".
Often the one or the other has only three wires included instead of 4. Then you know where it goes and so on. It's not too hard.
Good luck,
Achim(wiringharnessaficionado)