2006 2008 honda gauges into a 2004 blazer

Hello,

I have a 2004 Chevy Blazer and I want to replace the factory gauge cluster with one from a 2006 - 2008 Honda Civic. I know that they are both completely different, and that I will have to do my own wiring to make it work. Does anyone have any advice on how to do this.... and where I can find wiring diagrams for the gauge clusters on these two vehicles?

Start by getting the factory service manuals to both cars. 

If the Civic cluster uses any sort of communicaiton protocol you can pretty much give up now.

If you are extremely lucky and find that all the gauges actually have analog signals directly driving them then all you will have to do is scale the values in the Blazer to match those in the Honda.

That is best done with fairy dust, as mentioned above.