hey all, just recently purchased a 2015 Insignia Estate Sports Tourer 2L Question 1 - how do i update the maps? or find out the actual software thats on there... Question 2 - it juddered this morning when turning on, turned off then started back again - the Service soon light came on... any thoughts as its currently with a garage because we only purchased 2 days ago! so hopefully they can fix it. Thanks THF