Radio dead after telephone removal / OBC PPPP Code

[632 Regal]

Somehow this didn't look professional so I cut 2 antenna cables, a ground and some black wire running to the back window. Besides there was no phone. Now the radio don't work, no clue what to think.

Edit: One cable was already cut so there was 3 cables total a ground and black wire to the rear window antenna that sticks through to the outside.

Any help appreciated.