[ The existing light fittings are the same as the door puddle lights and are situated left and right at the rear of the boot. There is a large hole on both sides just back of the parcel shelf support. The boot liner partially pulls away from under the rubber trim surrounding the boot opening easily. The plug on the loom which supplies the lights is not standard, and Tesla cannot supply these separately. After a bit of research, Jaycar electronics at Grenwich supplied everything I needed for around $40.00. You do need to be able to solder. Catalog numbers and products are in the photos.