I was asked to provide some additional detail of the dismantle and repair of my sub-woofer unit in my MY2000 4.6 Vogue with the Harmon Kardon speaker system (as signified by the tweeters in the front doors).
All of these pictures are "post-factum" as I had already mended the speaker surrounds and reassembled the unit.
Here is the Unit as it appears when installed in the PSR bin of the boot. In this picture the CD changer has already been removed/not put back yet as that can only happen once the chassis is back in the car.
Conventional wisdom says "just undo the screws around the speakers and lift them out to work on them". Tried that and NO, in this variant you cannot do this.
If you try and lever them out you bend the speaker chassis, so DON'T Try this.
What you have to do is split the whole box by undoing the 8 button-headed screws holding the 2 halves of the unit together first, and it will separate quite easily.
There is a compressible rubber gasket embedded in a channel in one of the halves.
Once you get the top half off you can turn it over and you will find that the two speakers are bolted together at the rear with M5 bolts through the heat-sink of the sub-woofer power-amp.
There is a single connector inside the unit plugged into the power amp you can unclip the connector and remove the plug from the socket. In the picture below you can just see one of the bolt-heads (top right) where the heat-sink is bolted to the core of the speaker. Take both bolts out and you can remove the power-amp.
The power amp had this identification sticker on it.
What you can then see is how the speaker wiring is very cleverly arranged so that each pair of speaker wires is in a separate branch on the mini-loom, and for each speakers pair of wires there is a wide-spade connector and a narrow-spade connector. This ensures that you cannot put the wires on the wrong way round. Clever and considerate bastids!
You can pull the spades off and then unscrew the speakers and take them out to work on them.
Reassembly is the reverse of all of the above.
I hope this helps
@tomcat59alan