Please help with this little problem I have with my 1994 z28 camaro everytime I start my car I have to set the setting to the stereo and once I turn the key of and open the door it shuts of and turn the car on again and the settings or gone and I habe to be doing that over and over again when using my car help please thank..

 

The radio gets two 12V feeds. One is directly from the battery via fuse #8 in the panel at the end of the dash, and saves the station settings and security code in volatile memory. The second feed is switched power, from the retained accessory power (RAP) module under the dash. That provides power to allow the radio to operate, and it's the RAP module that provides power to the radio and power windows for about 10 minutes after you turn the key off, or until you open a door.

It would appear that the direct feed from the battery is not working - check fuse #8. Shoebox has a diagram of the radio, for a 95 but it's basically the came as your 94. It's for the optional Bose system, but the power supply will be the same for the Bose or the standard radio.

http://shbox.com/1/bose_wiring.jpg