Just wondering what i would need to install this in my leon mk2. I have multi functional steering, parking sensors, bluetooth, aux etc, will these still work? I have the cage, remote, mic and power wiring. Unfortunately when i were removing it out of my old car the trim that goes around the deck broke, will I need this? I already have the double din fascia which I ordered from sere although theres around a 15mm gap between the fascia and deck is this where the broken trim will go? If so where can it be purchased?