The intercom feed connector is likely Econoseal and a useful permanent fused power feed if not used. Plug and socket sets of varying pin numbers are available on eBay. Click for source.
![[Linked Image]](https://i.ebayimg.com/images/g/zwIAAOSwA3tXoLag/s-l1200.jpg)
On pre August 2014 models there are also short leads with two pin connectors for tacho and speedo configuration, black/orange & black and black/slate & black respectively. These are so similar to the wire colour codes you mention I guess you maybe mis-read. These appear to be a different type of connector though.
