Help with 0 awg sub wiring Cable routing

[sabaxter]

Hello after much reading on the above topic I have learnt the best access point into the cabin is via a grommet near the battery. Im wondering if anyone can advise me with getting the cable to the rear of my avant? can it be ran under the door trims? otherwise how did you run your 0 awg cable?

Cheers

 

[dualmono21]

cable grommet is near battery on most models but not all
you can run it down passenger side , but there is a lot of other wiring in there as well so you may well pick interferance up
the best place is down the transmission tunnel , across under the rear set and above and over the drivers side rear arch