TBH dan would be the best person to give advice on this, because its not a GT pack id invest in somethng to give it an edge when sell, maybe have to sacrifice a few pennies to make a few catch my drift in order to get the attraction for it. Something simple like changing the headunit to a double din with sat nav,dvd, ipod connector etc should catch the eyes. Buy of ebay for around 400 install it, sell the oem one on ebay to get some money back, then advertise proudly that it has sat nav and dvd... should make a difference