The noise is from a Parrot kit, had a problem with mine lately with a loose connection turning off when on a bumpy road.
Radio out and checking connection,unplugged a few and got the sounds as in video although nothing to do with opening doors etc.
Great fun trying to get it all back in
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work