95 Camry radio short ciciting lights

I put in a in dash cd radio in my car and about a month later the head and brake lights go out i thought it was one of my fuses but i checked and wiggled all the fuses and tried it and it worked what i want to know is the radio power somehow connected to the lights. Is there a problem with the radio or is it in the car?

what elses do you have hooked up? any subs? cause if so it could be that you dont have enought power