They were replacing a subwoofer which I told them to change ... Because it blew apparenty they said it was the amp. So they replaced the amp and then said they have to order parts, I said which parts and they said subwoofers so I was like well... I told you that's what it was from the start. If I go in today and speak to the service advisor how should I approach this.
2011 E90 M3 AW COMP