I have the Bose stereo option in mine, with the symphoney double din head unit. It sounds good, however I am used to ALOT more. has anyone had any experiance fitting after market kit to this layout? are the speakers amped or will they run of http://www.pioneer.co.uk/uk/products/25/111/241/AVIC-F900BT/index.html just as well? I am looking at using steg + audio sytem. Any experiances shared will be really useful. thanks in advance. http://english.gttrading.it/easysite/audio_system2.asp?Marchio=Audio post pictures of any installs, how have you fitted them in?