First of all, congrats on the new BMW. Now, let's upgrade those speakers (for free, of course)...
You drop off the X5 with us at our Glendale R&D facility. We'll need the car for two business days, as we'll be analyzing the factory system and prototyping new speakers. Ideally we'll be able to use some variation of the systems we've developed for other model BMWs, but the possibility remains that we may need to completely re-tool any or all of the speakers.
If this is the case, the X5 will be given back to you along with a growler of Golden Road craft beer and a promise that when the speakers are re-designed that we'll of course honor our original agreement.
We've done this dozens of times in the past and have had tons of fun meeting you guys here in LA. Let's make this happen, shall we?
Shoot me an email at email@example.com for more info.