Hi, Not long after I bought my B5 recently the rear speakers blew. I wasn't hammering the tunes out or aynthing like that, they just blew. They look lke the original speakers. I hope to buy some new ones this week, but can anyone tell me what size I need to get? Also, is it common for speakers to just blow, or could it be incorrect wiring by the previous owner? This has never happened on any of my other cars and some have been older. Any help would be great!