HELP: Replacing an ED instrument cluster

Hi guys,
Recently got my hands on a new ED XR6 instrument cluster, now I need some advice regarding it's proper installation.
Firstly, I drive an ED GLI, so I purchased the XR6 cluster to solve 2 problems...
1) odometer stopped working
2) absence of a tacho in the GLI's ugly outdated cluster
Thought I'd kill two birds with one stone:-P
Anyhow, what do I need to do to get this cluster working properly?
Recently got my hands on a new ED XR6 instrument cluster, now I need some advice regarding it's proper installation.
Firstly, I drive an ED GLI, so I purchased the XR6 cluster to solve 2 problems...
1) odometer stopped working
2) absence of a tacho in the GLI's ugly outdated cluster
Thought I'd kill two birds with one stone:-P
Anyhow, what do I need to do to get this cluster working properly?