Love everything about my Grand Touring except the HORRIFIC audio head unit and Tom tom navigation. Coming from a 2012 Hyundai Elantra with navigation and Infinity sound system. This Mazda's navigation is total garbage and the bluetooth music streaming is extremely annoying. Takes over a minute to load my songs when I start the engine and it should not take 2-3 seconds for the system to advance to the next song once I press the next song button on my iPhone 6. When I connect my iPhone 6 via the USB cable it plays 1 song but I can't advance it to the next! I spoke to the service manager where I bought my car (Star Mazda Glendale,CA) about this problem and he was honest with me saying..."the head unit is pretty much the only thing that sucks about this car...Mazda staff at every location are getting tons of complaints but haven't done anything to correct the bluetooth streaming problems".

If anyone knows of a good head unit replacement PLEASE let me know. That thing is going in the trash as soon as I know of a decent replacement.