Aftermarket radio installation issue

If the radio doesn't even come on then I suspect you have a power or ground issue. If he used a wiring harness, then we need to start with checking the fuse for the radio and then making sure the wiring harness has the power wire in the correct location. That means you need to check and make sure the new harness has a power wire in the same terminal that the existing harness has the orange wire in. Then the same thing with the ground wire.

I attached the info needed to check these things. Let us know what you find. Thanks

Just jumping in for a second here. There's another fuse in the back of the radio. Check it as well.