Hi Mike Welcome to the BMW Owners Club mate. Glad your liking your X3 Like they say, first class ride requires a first class price. But well worth it in the end. Stress levels are certainly lower than having a small car i reckon LOL
ouch thats gonna suck getting those right. unless there is a pattern to the colours and then test the sound by connecting each wire. If the current speaks don't have tweeters in them and are external then you will need to have a 12 wire otherwise it will sound awful. Tweeters are important. Best way would be to rewire new speakers with tweeters already in them. MB Quart speakers sound fantastic IMO.
Looking at the new mini countryman, not sure if I like it or not, back quarter looks odd http://www.autoexpress.co.uk/front_website/gallery.php?o=0&id=352522
i always thought that warranty companies want you to buy their products within 90 days of purchase or expired manfacturers warranty. Terms need to be checked before buying. dealer warranty is different as they are able to check the car in person anyway.