Swapped the dashboard on my 87 300SDL with the help from previous threads. I attached all the main connectors and bulbs back into the instrument cluster, except a random wire that looks like a naked ground wire. I didn't break anything, I knew what I was doing from when I removed the "new" dash off a junked 300SDL. When I start the car my battery light stays lit, my engine coolant tank light flickers and so does the brake light. Brakes are new, hooked the parking brake back, and coolant is 2 days old. All guages work except fuel and engine temp., which woories me...

Any thoughts or ideas are greatly appreciated!
Thank You!