rehills

Hey All. I have a question about wiring up a overhead console. I found a good used OH console in junk yard and i am trying to install in my Astro I have 7 wires. of which i was able to just plug into the convience center and install a temp sensor in the grill . the wires I was able to hook up are black. pink. ppl/wht. gray. drk grn. green/blk. i am left with a ppl wire. any idea where i should connect.. 2nd the display works comes on, compass is good. after about 10 seconds the temp display just goes to dashes. if i turn off key and back on. i get temp back then same thing 10 seconds temp goes to dashes. Have i hooked something up wrong or is the mystery ppl wire need to be connected. I really want to thank you all in advance for what you do on here.