You must have the only satisfactory Narco 120 in captivity !
I kid you not, it is very satisfactory and I'd be loathed to get rid of it just because EASA, CAA or whoever dictate I have to
Re my mates Becker, it was professionally installed so I'd be surprised if there are any other issues, 'could be the intercom! I don't know, but all I can say is that I wouldn't swap.