LOM
The F-4M was not a naval version
.
All that I meant was that the K and M were both based on the J. Most of the RAF interaction with the aircraft, radar and weapons (AIM7 and AIM9) was with the USN.
As for Indexers and Audio AOA, there were various variations and combinations throughout the Family of F4s in different nations and forces.
Even such things such as Slotted Stabilator (F4F) were adopted in later variants.