right, 1st off, again, neer follow the advice of bass junkies, they really are cowboys
to remove the grommet from the passenger footwell, you have to disconnect the bonnet release cable (make sure bonnet is open 1st) then feed the BR cable into the engine bay, slide off the rubber grommet and make an incision (drill or cut) big enough for the amp cable (i run 2awg in the end, so it does fit), refit everything, then feed the amp cable through the grommet into the engine bay
it is extremely easy to do
again, dont listen to cowboys either