Hi I,am looking to upgrade my standard Radio in my Fabia VRS 54 plate. Would like to include SAT NAV in the unit and also connection for my IPHONE/IPOD. Not sure to go dougble din or not , will this fit straight in, also might look at changing the speakers in the doors as well , or are the standard ones decent. Was thinking of putting a base in the boot but don,t wan,t to loose the space, also unlucky with punctures so don,t want to put in the wheel hub. Is it worhwhile changing the door speakers. Any advise on good a good headunit to use and speakers.

Most VAG dealers can supply a similarly sized Kenwood unit with Bluetooth inbuilt for £400