Audio Systems: camry audio question, stereo wiring diagram, toyota camry

Question
my girlfriend has a 94 toyota camry. her brother cut the oem harness off so i had to search for a diagram that would help me hook up the oem wires to a standard aftermarket radio. i hooked everything up and it works but when night comes and you turn on the headlights it kills the radio. i cant figure it out.

Answer
Here is the color wiring chart for the 94 camry.  Please check it all again.

http://www.modifiedlife.com/1994-toyota-camry-car-radio-stereo-wiring-diagram/

Your radio outputs should match the functions of the camry.   

I suspect the light wiring is still wrong, like the stereo power line is coming from the headlight feed and not directly from the battery.

Best to you,
C