Update 9-10-11:
Trying to run a new ground didn't work at all. I get about 2.6 Volts when working or not working. So I took off those Stainless steel screws on the back of the speedo head and on the other heads. I noticed that the SS screws where oxidizing (white film) on the hardware. I pulled them off and used a brass brush to clean them. After installing them again the head works great!!!!!!!
Unfortunately, the cruise control still doesn't work so not sure. Additionally I accidentally broke off the needle on the Hot/Cold gauge and had to glue on an ORANGE colored Toothpick. Don't mess up the needles like my dumbass..
The wife doesn't like the toothkpick needle so she wants a new cluster, but we'll see.