First Service Question and Warranty in Regards to Winter Wheels

I have a few questions for you guys

1: Computer seems to pinpoint service at 11,500 miles, does this sound correct? I thought it was every 10,000 miles.

2: Will they adjust the emergency brake under warranty if I ask them to do it when I bring it in?

3: One of my speakers is blown out (was like that when I first got the car). Would they cover that?

4:Will they void my corrosion/suspension warranty for using aftermarket BBS wheels and 215/50R17 tires if I bring the car in with that combination?

5: Also, I coded the office function into my headunit. Should I remove that before I bring it in for service?

Thanks

First Service Question and Warranty in Regards to Winter Wheels