70 duster radio

Hello a-buddies. Trying to get a correct replacement radio for a 70 duster 340. Looks like somebodies been har View attachment 1715715098 d at work with a saws all here. Can anyone out there tell me what the mounting tab on the left side should look like? Looks like it's been cut.
Also, and I know it's been covered a thousand times, shouldn't the correct radio for this car say "solid state by Plymouth"?
Author: Khuotakharma