Yes.. May be overkill but twenty years flying with a PS Engineering audio system that has been superb in terms of audio quality and has never given a moments trouble resulted in me having to throw it into the mix.
Personally having used the Trigg I would go for that in a seat two aircraft as the audio is not bad........... But not up to the PS standard.
At the moment I am doing a mega Garnin upgrade on my aircraft but despite all the pressure to make it an all Garmin panel the audio is going to to be from PS engineering rather than the cheaper ( and quite good) Garmin item.