Tom - ahhh now I understand! Sorry I was being slow there
You have alot more dash wiring with stereo and alarm system stuff! All the gauges are readily removed without the dash out, especially if you remove the speedo first. This gives a large opening to get to almost anywhere in the gauge area. That's how I worked on my ammeter was through the speedo opening. There is a large wiring harness connector just near the drop down fuse panel but with your extra wiring it probably is alot more complicated. Sorry to hear you have to remove the column, that is a much more work than just a gauge install, good luck