RoughNeck

Hi there, I've wanted to change the head unit in my 2014 Honda Civic to something a little bit more modern. I took the car to Halfords as they seemed to be good value. However, they tried installing the stereo only to find that the stereo would turn itself off after about a minute or so. They tried two different units (Kenwood and Pioneer) and the same thing happened. In the end I think they just gave up as they didn't know what the issue was. Apparently they tried a few cables too, to no avail. Thankfully, I was not charged for anything. Does anyone know why this might happen? The standard stereo works fine, so doesn't seem to be a power issue (or a cabling issue?). I spoke to Honda, and they weren't sure why it would do that either, particularly if the standard stereo works. I also spoke to a local garage who said that it could be something with the comms/electronics system that is causing it - giving me the example of when a brake light goes out, the car may over compensate on another bulb to make it brighter. I'm not really sure what was meant by this , but I guess relating to the distribution of power? Anyone experienced anything like this before? The local garage said they'd give it a go for me, but if the same thing happens I'd have just wasted money on the head unit and the fascia kit (around £300 for both), and possibly the labor. Thanks in advance! Jon