question 1 = dunno if it helps but I changed mine a while back so just infront the gear stick under carpet there should be a smallish hole just big enough for the cables to go through one at a time, on the bulkhead side should be a rubber grommet the cables need to both go through the middle of this but take it off the hole as it restricts your cables when trying to push them through, the cables will only push through from the cockpit as the connectors for the gear stick don't fit through the hole and only one at a time as already said , then obviously they need to bolt up on top of the gearbox