This might be a long post.
I bought my second Honda s2000 and it was hardwired for a 8500. It had the same phone plug as the v1 so I have been running my v1 off ti for a few weeks. Well I finally got around to installing the concealed display today. So the 8500 used a harness with a fuse and I cut the phone cord off of that and attached my v1 harness. Everything powered up fine until I tried to use a phone cord from my house phone. The cord would power up the main v1 just fine but for some reason if the cord was being used the concealed display (using the v1 cord) would not. So i changed out the main display to the coiled cord and ran it under my a pillar. Everything works good.
One thing though. I noticed the concealed display's brightness is fluctuating a little bit. Does it adjust to the ambient lighting as well? Or perhaps the dual fuse setup is doing something to it? The main v1 is getting power from the same harness and doesnt fluctuate at all when i disconnect the cd. When the radar goes off the cd doesnt fluctuate at all.