So the bridge pickup in my JTV-89 has been microphonic for some time now, maybe even since I very first got it. When I first noticed it I didn't even know what microphonic meant for a pickup (thought it was just a tube thing), and I thought it had something to do with pickup height or my amp settings. I lived with it for a while until it started getting worse, and then I did a little research online and found out how to test to see if it was microphonic (and it was, of course). So, I thought about trying to repot the pickup, but then I decided I'd take the opportunity to just put a new one in. I decided on a Suhr Aldrich, and when I got it I opened up the JTV and took the bridge pup out without any hassle. I made a drawing of the wiring before I took the pickup out, and then I went online to find a diagram for the Suhr pickup, matched up the colors, and installed it. It didn't work right. For one thing, the coil tap and humbucking positions were swapped, and overall the output was very weak (and this is high-output pickup) and noisy. I figured I'd try again, this time switching the middle two wires to correct my first mistake. I tried to be a little more careful with the soldering, and I even trimmed the leads back a little so there wouldn't be as much bare wire exposed. Once again, not working right. The pickups are still far too noisy, and there is no apparent difference between the 1 and 2 positions on the switch. At this point I just closed it up and put it away. I'm probably going to see if I can send it back to Line 6 for repair, but I wanted to check here first and see if anyone has done the swap and ran into similar problems (and hopefully fixed them!). I'm all ears.

Oh, and in case anyone thinks he/she can help, here is what I did for the wiring: on the Suhr, the color code is supposedly the same as Seymour Duncan, so black = north start, white = north finish, red = south finish, green = ground/south start. I put heat shrink tubing on the bare shielding wire and soldered it to the same spot as the shield wire in the factory pup. Then I found the wiring diagram on the Line 6 site and assumed the colors shown were in order (north at top, south at bottom), so that's how I matched them up.