I had an issue with my head unit and they weren't particularly empathetic and were quite argumentative. In my opinion the head unit was not fit for purpose as the display can't be seen in sunlight. When I spoke to Car Audio Centre the first time I was told "It's the same as a TV. You can't see it when sunlight is shining on it". Well I don't have curtains in my car to close when it gets sunny and TVs aren't designed to be viewed whilst being driven around in a car to design a car stereo the same way is ridiculous. The issues was so bad I ended up buying another head unit which was much better. When I called again to discuss returning the item I was told the head unit was fit for purpose, just not my purpose (driving around in daylight???) and as I had already installed it I couldn't return it. I explained I had no way of knowing there would be a problem until I installed it. They said I should have tried it out in one of their shops but then stated they were dark and didn't have much sunlight so I still wouldn't have known until installed it in my car. In the end they told me Pioneer sell loads of these head units and no one else has complained. I joked that it must be because my windows weren't tinted. The person I spoke to didn't realise I was being sarcastic and said yes, that's your problem! To be fair he said they might have been able to swap it with Pioneer for different one if i hadn't already bought a replacement. As mentioned above the outcome may not have been better but I would have appreciated a bit of empathy and not to be made to feel like I was wanting something unrealistic from a head unit.