Installation by trunk harness (9-5 Estate, 1999-2005) The left trunk cover must be remove. 3 torx screws must be removed You need a 27 torx The side upholstery screws must be unscrewed with an 8 wrench Behind the upholstery you will find the thick cable bundle The connectors are behind the left rear wheel The protector plug must be removed from the two wire connectors The BT-Changer is ready for installation. Fixing the ground point is very important Use the factory mount Plug the two connectors together and it’s ready to use After installation, don’t forget to configure the module via Wi-Fi! FIRST SETUP