The early stages of testing included field tests from early owners. Those reports will be listed here.
From H.I., Atlanta, GA
Here is a quick iPhone photo of the JW Speakers installed on my 1988 coupe. I replaced the regular city light bulbs with led lights that matched the color temp of my Hella DRLs. No issues with installation. I did have to bend the upper H5 mounting tabs back for adjustment. The lights are off in the pictures (how it looks when the DRLs are on).
From DM, 964 Owner
Installed on 964:
Another JW Speaker owner: