I am trying to replace my old stereo with my new Kenwood stereo. I got all the wires connected and the stereo worked, But the amp didn't work. I replaced the amp with a different one and now the stereo and amp won't work. They would both just turn on and off and keep doing that. It seems like I can't keep power going to both of them. I have no clue what to do here if anyone could give me some advice that would be great.