quesiton about different oem head units

[SketchyRollin564]

ok so, i have a 95 s14 base model with the oem tapedeck

i had money for a really nice alpine head unit that i was gonna buy form broadfield, but i found some good *** deals on the local forums for some parts for my car, so id rather spend the money on that first, but in the mean time while i save up again, id like to atleast be able to listen to cd's in the car cause the radio is just straight up static in my car

so my friends got an 01 altima and he changed the head unit, so i bought his old cd player for $14 since i figured it would just plug right in

well.. the harnesses are the same, but the power plugs are different. Ones bigger than the other, and one has two prongs that go in it instead of one

im sure if i was really good with this stuff, i could figure out a way to make it work, but the fact is im not. so...

that leads me to my question: does anybody know which head units from which nissan cars and years are compatible with the 240sx? yes i know a 240sx cd player will work, but thats really hard to find one, cause most 240s came with tape decks