factory solar panel
I am sure others will tell you different/cheaper ways, but in my case I prefer to stick with the Airstream factory components so when I got solar added to my '06 19 footer I had Jackson Center put the factory panel on and connect it up. Note, I also replace the batteries with two new AGM batteries and presuming your batteries are the original it is probably about time for new ones also.
In addition to the solar panel on the roof they also installed the charging controller inside right above the battery/water system status panel, All in all a nice installation that I personally think helps maintain your Airstreams value better than the cheaper, after-market non-standard components (although I am also quite sure that some of those are probably better etc etc.)
regards, Dave W.
2006 Bambi SE,
2008 Ford F350 Diesel 4x4
" I am lost and have gone Airstreaming to find myself, If I should return before I get back, please ask me to wait..."