Review on Bulb Terminal Shape by CEC Industries: Optimize Your Search by Bob Roberts

1989 C/K Chevy truck that blows radio bulbs and nobody sells replacement bulbs, you have to disassemble the radio to get to the bulbs and then replace them with the old ones, reusing the original base , slightly smaller than stock so I put two bulbs on the base, the radio lights up as it should so I can see the knobs at night now. OEM amp, radio and tape deck all in one for a few hundred bucks to fix some lightbulbs lol.