Ok, so after reading and trying
many numerous different methods of getting amp cable / boost gauge vacuum hose into interior, it has come down to the throttle cable grommet.
Only problem is, this grommet does indeed have my throttle cable running through it

Is this possible (and safe) to cut open grommet and poke through my amp wire and vacuum hose, these will be the only things running through and amp wire will be 4awg i think.
Opinions please
Have tried one behind pollen filter, and running through door, neither of which i can do.
Thanks
Dave_IOW