I collect 88-94 radios and eq/tape players. I know a guy that can add BT, rca outs and aux to the radios.I wish I had a stock head unit too, factory integration has come a long way. I think I saw a “retro sounds” deck for our trucks but if i remember correctly, it didn’t even look like our stock radios.
Edit: I think they used a work truck model as their base.
I bought a $25 kenwood radio (open box, b grade, demo unit) and it’s such a piece of Junk I just drive around in silence. I don’t even set the clock anymore.