While I was inspecting the 356 loom, I noticed the PO disconnected the wires
to the left headlight completely. They ran the right headlight wires into a
relay (in addition to the original relay) which feeds both left & right headlight. Why would you do this? Should
I just disconnect what they've done and re-connect the originals. The car is
still 6V and seem that it had fog lights installed
Thanks
Raf

This link might answer your question

Relays: WHY AND HOW TO UPGRADE YOUR HEADLAMP CIRCUIT
http://lighting.mbz.org/tech/relays/relays.html 

That's a nice link, kombi69. Thank you!

Thanks very much, that explains it. I love this forum
Raf

No worries, the forum does it for me too.