Sorry I cannot find the video that a member kindly posted. It's a guy in the midlands who fits Ghosts talking about making sure the people who you get to fit the Ghost 2 know what they doing. One of things is the price which should be £499 and this is due to the other thing which is time, it should about 2 hours plus to fit one. Auto Watch UK Ltd ( The importers ) seem helpful, it does take a few days to get a reply.They do say that "We train and approve independent trade installers to fit our products."