Place some tape along either top or the side of the speaker grills to protect the plastic.
Use a flat blade screwdriver to lever the speaker grill away from the door.
The grill hinges downward to reveal the speaker.
The 13cm speaker is a standard design except the mounting points are odd.
Below shows the speaker and the screws circled in red. A normal speaker has equally
spaced tabs around the outside of the speaker. These would be where the green circles are.
To get a normal speaker in there you will have to cut off one tab and make a new hole for
the new lower tab. The speaker will be held in with three screws but that will be fine.
Careful not to drop any of the screws as they are bound to fall through the 2 holes.
On the front of the dash you will see a vent either side, these also pop off.
Protect the dash with some tape and lever the vent upwards.
Underneath you will find the tweeter, this can be changed for another type if you have room.
The standard tweeter is placed near one end but there is a bit more room nearer the middle.
What Speakers Should I Get?
I'd suggest something with a plastic cone and a rubber gasket, that way, if you have a leak by the wing mirror and the speaker gets wet, it doesn't matter. Very few after market speakers have paper cones so go with what ever you prefer. Infinity, JBL, MB Quart etc.
Depth is important so they don't interfere with the internals of the door.
The standard speakers are approximately 50mm deep.
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