Fixed. Connected the black trigger wire to the ignition switches wire. All is good in the world

Hello to all. I’m a newbie so please be gentle lol. I am attempting to install a pioneer double din dvd receiver in my 2003 Vibe base. Got it all wired in but have no sound. Checked all wiring and it looks good. I’ve just read that there is a factory amp under the passenger seat and I believe that i...