I figured it was about time to get this car's audio to match it's performance- therefore decided to get it's system upgraded last week. However, for us on the east coast- there didn't seem to be many options and couldn't find anyone locally that's had their audio upgraded. Jealous of you west coast guys! Given I took a risk with buying this car in the first place- why not be a first with getting the audio components replaced. So here's what I got done: 3 front dash speakers replaced with HAT Legatia L3SE Front door speakers replaced with HAT Legatia L6SE carbons (had to use these given the depth restrictions) Subwoofer replaced with HAT Imagine 8 inch woofer Amplifier used was JL Audio 700/5 Sound Processor was a Helix P-DSP unit Sound damping done around the speakers All controls are still managed by the touchscreen. Now I wasn't about to turn this car over to just anyone- believe me, they all offered. Decided to go with a company in Atlanta that makes the high end audio speakers- Hybrid Audio. They have an auto installation shop (Hybrid Auto Salon) and have worked with the audio for other high-end electric cars. They spent 50 man hours on this car to get everything done right. And yes, I can finally answer a big question that I've been asking this entire time- the DSP and crossovers are located in the dash behind the touchscreen- I don't think anyone was happy when they found this out. But in all honesty, given the location of Tesla's hidden audio components- I wouldn't dare touch any of this unless done by an expert with insurance. The sound is absolutely better- and will only get better once these speakers are broken in a bit. The soundstage has been pushed back beyond the windshield, the music surrounds you much better, you can make out certain instruments you couldn't before, and the music is more crisp. I can now hear the subwoofer bring the lows missing from the original Sound Studio package (my seats rumble finally). Although the 8 inch needs a little more time given that it sometimes has difficultly with some low frequencies (a 10 inch may be needed for this). All the audio equipment is hidden- the car looks exactly as it did before. All-in-all it was an excellent job for a very complicated car. I'll post some additional pics when I get the chance.