4WS pipes connections/route

Hi All,
I forgot to look at 4WS pipework on TT before it went up to Scunthorpe, so not sure of routing and cant find diagram .
The red one has the return (drivers side ) two lines blocked off with bolts and sealer .
I have a spare rear matrix and it looks like a flexi pipe connection? I take it the two pipes run to front under the covered channel, but what is return to , pump, reservoir along bulkhead?
Diagram or pic would be great if you have a beast up in the air.