Citreon berlingo/Peugeot partner 1.9D DW8 engine

[harlyboy]

Good day everyone. I need help with the engine wiring on a Peugeot partner 1.9d DW8 engine. I bought the partner with the engine in pieces. I rebuild the diesel motor after replacing a conrod,piston and crankshaft. The head also needed 2 valves and some engineering. All is good now and engine is back in the van. The electrical connections is a bit of a problem for me. Not sure where the routing of the cables go but managed to get the right connectors to fit to the right receptacles.(colors the same). However, there are some round lug connectors that i dont know where they connect. Not sure if they might be earth connectors. I have the starter connectors right as well as the alternator connectors right.  Is it possible that someone can help me with maybe pictures too make sure that i connected them all correct? Thanks

Close to the alternator i still have 1 wire with a round lug on. (looks like a purple wire) I cant seem to find the place for that wire.