['68OrangeSunshine]

Well it was the Seventies... I cut One hole in each door; Drivers' side Door and on the Passengers' side, to mount 5" Jensen speakers. I and I found I had to mount some foam extrusion envelopes behind each one to cut down excess reverb. [Rattling, Mon.] I also with malice aforethought did cut one 516 Orange OEM Radio Delete Plate, piercing it with 2 holes, one for the Volume Knob on the left, and one on the right for the tuning knob. It was analog [superhetereodyne] tuning.
Between the holes, I shaped a long rectangle for the Tuner Dial. Then I sprayed the aforementioned holy 516 Orange Delete Plate in Flat Black, to complete my auto Hi-Fi look. I made it into a period correct Radio Face Plate. Then I bolted on a Sanyo Cassette Receiver/Tuner/Recorder, and proceeded to Rock and/or Roll.
[Yes, if I hit the RED button, I could save the hit on the air now!... That was big tech then. Only used it once, and that was to save a Surf Tune. But it was a nice option. Hard to use with a stick shift and manual steering and a driver's preference for hilly roads.]

I may spend an aeon [or two] in the Purgatory of Bad Chevy Truck Owners for my most greivious sins.
(It's a junkyard from horizon to horizon full of nothing you can use for your rig or your projects.)
In my defense, I state:
I only used the holes God gave me.
I NEVER CUT A DASH.