Well, I re-wired everything! Still having the same problem. Steve even stopped by with a known working Icecap 430 (thanks Steve).

I still used the same jumper cables though because even at 14 gauge it's larger then the cables coming from the ballast. The harness cables are about a 16gauge so that shouldn't be the problem.

The only thing I can think of is that one or more of the end caps are possibly bad???