I have a 98 Oldsmobile bravada 4.3 v6 vortec. Same as the blazer lol. I got the stupid climate control heater. The other day I put my CD player in and everurging worked.I pushed it in and then all my gauges except oil pressure and battery stopped working including my heater. When I unplugged my deck still nothing worked. So I plugged it back in the all my dash lights stopped working(the light that illuminates the gauges headlight switch heating controls and what gear I'm in on the shift lever.) And yes I have checked every fuse like 19 times because everyone I've asked had said even after I told them I did. So I'm seeing if anyone else has any ideas. Why all this stuff stopped working. Oh and my check engine light batt light abs etc still illuminate when ignition is in the on position oh and my odometer doesn't work either.