Genuine Volvo 940 / 960 / S90 sedan parcel shelf speakers, in good used condition. VERY rare in Australia as they were never fitted to Aussie market specs for some reason. I imported these from UK myself, the damp & gloomy weather over there means the paper cones isn't as dried & deteriorated as Aussie cars of the same vintage.
Makes a HUGE different to sound quality, especially if you like DOOF DOOF music as it uses the boot space as a sound box.
Installation is very easy, back of parcel shelf actually has cutout already. 92 & later cars are also fully pre-wired, 91 is pre-wired at the base of B pillar so it's not hard to add the wiring.
$150 for a set of speakers with grilles. Also have a set of black speaker grilles (no speakers) for $50.