A little of topic, but when I saw this I first thought of Ford Demo Tapes.
When you got a Cassette or 8-Track option for your truck, they would give you a demo tape along with the care manual.
Each one of these goes by the Title: "Ford Motor Company: Stereo For The 80's" and has the exact same cover to them to at least 1984. Each tape however has different music on it.
80/ 8-Track Cartridge: E0VY-18816-A
81/ 8-Track Cartridge: E1TZ-18816-C
82/ 8 Track Cartridge: E2AZ-18816-B
83/ 8 Track Cartridge: E3AZ-18816-B
80/ Cassette Tape: E0AZ-18816-B
81/ Cassette Tape: E1AZ-18816-B
82/ Cassette Tape: E2AZ-18816-A
83/ Cassette Tape: E3AZ-18816-A
84/ Cassette Tape: E4AZ-18816-A
85/ Cassette Tape: E5AZ-18816-A - One Found NOS at NOS Parts Limited - (972) 937-2201
86/ Cassette Tape: E6AZ-18816-A
Various USED hits on some of these from various places.
These demos were great and Complaited by RCA Records at the Time. Country / Rock / Classical / all on one tape etc.
I have four of these used that I enjoy in my truck.
I
Truck: 1981 F-150 Explorer / Engine: 300-6 California MCU Feedback System / Trans: T-18 - 4 speed / 2.75 Ford Rear Axle Open Diff.