just got a 2005 equinox none of the gauges work (dash lights work and tach jumps when cranking) I'm assuming it's not the stepper motors in the cluster since it's every one of them. Also have airbag light on, t/c light, brake light, abs light and service soon light and turn signals don't work and radio doesn't work And my power steering doesn't work. I read somewhere else that all those issues tie into one another so I stated it. I've checked every fuse and the 80amp one under the hood and still nothing! I'm lost what to try or test next! Any help would be greatly appreciated!