I've read that to replace a faulty fuel flap actuator on a MK7 Golf GTi (a fuel flap that isn't locking), the only access to the connector is from inside the boot compartment that requires quite a bit of internal panel removal. I'm thinking of cutting the cable from the outside, and soldering the cables of the new actuator to the cables of the old, thus negating the need for the panel removal. Has anyone ever done this? Are there any issues disconnecting the battery for an hour or so whilst the work is carried out?