Cables from battery to cabin

[Morgz84]

Hi everyone, this my first post as new owner of an Avensis T25 estate.

I am into my CB radio (yes, it's still going strong).   I am planning to install my CB radio from my old car and want to run power and antenna coax feed from through the bulkhead and into the cabin.   Can anyone suggest a suitable grommet I could break into to run the cables into the glovebox area?  I will be installing a din sized radio underneath a single din aftermarket stereo with all the relevant adapters and trim facia.   I will need to install a suitable cable into the glove box to run power amp and supply power to radio mounted in the centre console.  Any advice would be appreciated, thanks.    Chris.