Harry, a nice PB210 replica with your old 1800 cc L16 would be perfect in that car. those speakers probably only work with the cassette player, my Sunny panel van had exactly that sort of tape player in the centre console with 2 speakers in the rear trims indepedent of the factory AM radio & it's single speaker in the dash. Good find, how did you go with that Sunny coupe you were looking at, it still pops up on Gumtree.