Help with stereo upgrade

[Sammyrae1982]

My husband was trying to put sub woofers in my 2017 Toyota Yaris IA using a PAC system and now the radio won’t turn on at all I was wondering if anyone had any ideas or maybe leads to the wiring diagram for the stereo so we can see if we spliced into the wrong wires?

[bassmannate]

There's really only a couple wires that could be causing that. Either the constant power that retains things like radio presets and provides the bulk of the power for the radio or the ignition wire that tells the radio to power on. Looks like the constant power is blue at the tuner and ignition is gray. These are a little goofy since they're basically a Mazda 3. Tuner should be above the passenger's kick panel. Either you have a broken wire or a blown fuse. I don't have access to full wire diagrams here but this should help you if you haven't figured it out by now.