i took my z out for a drive and all the sudden all the gauges stopped working, i still have a brake light, air bag, and rest of the lights. i checked all the fuses and disconnected the negative battery terminal. I heard its the ac amplifier...is that right? id like to know before i order one.

 

that happened to me when i disconnected the ac amp when installing the radio and forgot to install it again. Fairly easy to check if it disconnected instead of actually going bad. check for radio install videos or instructions on how to do it, before ordering a new one.