I thought that picture looked familiar - your tester was what inspired me to build my own! I came across a picture of yours elsewhere on the internet about a year ago, and I saved the photo in my list of things-I-will-do-someday because I thought it was a really clever idea.

I wish I had seen that thread before I started! It would have saved me a lot of trial-and-error steps. There's a post on there (#16) that describes almost the same method I ended up using, but I did it wrong 4 times before finally arriving at that method...

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1989 250TD Wagon 5-speed, 160,000mi ::: Dark gray metallic / black cloth
1984 190D-2.2 5-speed, 287,000mi ::: Silver-blue metallic / black MB-tex ::: SOLD