I've just ordered the unit from 'add a changer'
They are very helpful and quick to respond to questions. A really good service.
This is their techmical support site -
I mailed several other suppliers with enquires about the CHM 604 / 62 but none of them replied, which is why I recommend the above. It was approx £147 including delivery
I'll post once more to let you know if it works (fingers crossed.)
BTW You are welcome to mail me if you want any more info. I'll try and help as best I can.
ps. I also fitted genuine Renault parking sensors (£50 from
) and a removable towbar, so I can offer my advice on that too. But be quick as I'm prone to forget what the hell I did as the weeks tick by