I just saw this over on the Sprinter-Forum and thought I'd share (no affiliation ... though I did just place an order). A guy there came up with an adapter that lets you insert a standard marine switch into one of the factory switch blank locations with no drilling or cutting. Looks like a very clean install!
This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.