I just bought a new stereo for my Northriver (Kenwood 232MR). Anyway -I am still trying to decide wether to do an in dash style mount under my glove box. Or do an above dash mount with one of the waterproof / removable housings. If I do the in dash method, how necessary is it to have the flip protective cover? Also, is it necessary to get one of the Galaxy style Shakespeare antennae's or is the cheaper Centennial OK?