How Much did you pay for your PX6.. Wondering if the price they are advertising is really a sale or just the buy now bs. They are advertising them for $729 and has a ton of upgrades to purchase along with it.Well, I sold my original PX3 based unit to another member of the forum, and he installed it in his car and it worked no problem. In fact, based on feedback from others in this thread, my PX3 unit was apparently the only one that didn't hiss. The guy who bought it says it doesn't hiss in his car, either. The new PX6 unit I bought also doesn't hiss. So I would bet that the original problem was fixed on newer units.
I don't do Apple so I can't comment on Carplay. The PX6 I bought is supposed to support Carplay and Android Auto but I haven't been able to make AA work and ultimately decided there was no point. Having a full-fledged Android tablet eliminates the need to project my phone to the display. It's more complicated and doesn't bring anything to the "party". Yeah, if your phone is more powerful than the tablet it'd make sense to use the phone with the tablet as a remote display, provided you were actually running an app that couldn't perform well enough on the tablet. But there are no such apps at least as far as I've experienced. None I can run while driving the car anyway.
These tablets use a 3rd party Bluetooth module because they have to act as "slaves" and the tablet's built-in bluetooth is a "master". Because of this, you can't connect much else to them except a cell phone (which is a "master"). If you want OBD-II you need a WiFi dongle version. I bought one at random off Amazon that works fine with the Torque app, with the one downside being that the tablet can't be connected to the dongle and also to the Internet. That hasn't been a problem, though, since the only time I use Torque is on the track and I don't need an Internet connection in that situation.