96 Windstar LX speaker system

[rvluver]

I have 5 speakers in the audio system

2 in the front doors, 2 in the mid-panel rear and 1 larger one in the left rear quarter panel.

All are working great except the rear woofer/?. it rattles badly
Once I get the panel off, what will I find in there?

How do I get the quarter panel off?

Before I experiment,I thought I would ask the experts.
Tnx.

[rvluver]

In the absence of any replies, I'll answer my own question:
To remove panelling, remove small top corner molding first. Remove seatbelt anchor at top using #T-50 torqz dricer. Then pull 2 small snap plugs below it and near window. Remove molding.
Next remove 2- cargo-net round hooks (Phillips driver). Lift up a portion of floor strip.
Insert screwdriver at rear to pop panel fasteners.
Pull large bottom panel rearward, (some jiggling and struggling involved.)

Speaker and amplifier are now accessible. Speaker is a 6" hard-cone unit , weighs 3 lbs.
In my case the cone was destroyed/broken, even though hi-power was never applied in last 10 years. (I'm not a BOOMER). Remove 4 screws (T-15 torqz driver)
The system amplifier (170W) is located here too. #18C804.
Apparently the amp supplies 90W to sub-woofer and 4x20W to door/panel speakers.

The sub-woofer is not affected by the FADE control, it's always on.
FWIW, I solved my problem.

[mark v]

The speaker just deteriorated, it happens over time.

Glad you found out the problem.