This working Aerial from MH requires a foam adhesive pad PN SR7-287 and recommended to put bead of sikaflex around the black sealing ring after install. The Router gets power and wifi connectivity via the Power Base Unit. Having recently upgraded my van this kit has become available. The nicks to the seal was caused by the cheese wiring the adhesive pad. The blemish on the router is the original protective film that is still on the screen.