So yesterday I took out my stock bose head unit in order to see the back to see if it had the red and white wire plug ins on the back. Unfortunately they don't. So idk how i am going to get an aux cord for my car because I hate the radio. But back to the main point. I connected all the wires again and now my radio isn't getting any power?? I check all the fuses and there all good. So what could be my problem?

I drive a 99 audi a4 2.8 Quattro.