I will be collecting a new T660 in a few weeks and will be fitting a 140W solar panel. I have been told it is fitted with an Electroblok EBL99 unit. Has anyone fitted solar to one of these and do I need a proprietary regulator? Reading on the A&N website it seems that I do. The solar installation on my existing van uses a Tracer along with a battery to battery charge regulator (CB2?).