Ye olde wiring harness? When to replace?

I replaced mine with a 20 fuse EZ wire harness. The job went pretty good, the biggest obstical was the plugs and connectors. The harness I bought didn't come with new ones so I ended up using most of the old one after I figured out how to rebuild them to take the new wire. I didn't want to just solder the new wire to the old stuff.

There are probaly better harnesses out there but for the price I was happy with this one.

You can see some of what I did in my bulid thread listed below.