(I posted this in the V10 forum my accident, mod said I should post it here.....sorry about double post...)

I bought my truck from a UHaul fleet and it runs great. What I want to know is what OEM radios that year supported. I can't find anything about radio types in the workshop manuals. I see it has just a single power connection for power and door speakers. It has the lowest end radio in it with the 4 button presets.

I'd like to know what other radios from that year can be directly installed. eBay has a bunch of different variants, but the connections don't look like a direct plugin.

Anyone have any part numbers or images of what else the factory released with it? Anything blue tooth? MP3 playback? Satellite? CD changer?

Thanks for any help.
Chris