Pony Pack Grill on S197 V6

[Steve]

Hi All new to the forum looking for some help.

I have bought a used Pony Pack grill for my S197 V6. I have also bought the wiring kit(New and office ford parts).

I have the official ford installation guide, but I am a bit stuck on the splicing.
I have to splice into the Yellow/White cable. But not 100% which loom this is.

Has anybody done this before, can they point me towards a on-line guide or post some pictures?

Thanks in advance,
Steve.