Bf 109 K-4 & MK108 "pressluft" filling point

[Kuba Plewka]

Let me say hello to everyone in here, it's my first post here...

I'm looking for some information about compressed air for cannon in 109 K-4.
MK 108 (like MG 17) need compressed air to be reloaded and all Gustavs in U-4 standart had two bottles in sixth fuselage section and a filling point in fifth.
What about K-4? Also MK 108 installed but no filling point in old place (understandable with fuselage interior changes) but I cannot find the new location of it?
Where were the bottles also? Still in sixth section or moved into wing?

Other question is the shell ejector for MK 108. On G10/U4 photos I cannot find that. On K-4 this item is sadly invisible for me. Did it have any ejector for shels and ammo belt parts or it was "carried" in fuselage, like in older, MG 151 equipped Gustavs?

thanks for any help with that

Kuba