Thanks to the person who said they fixed their Infinity front door attached amplifier speaker with a hot glue gun. Mine was buzzing every time a bass note came on and I looked ever where for a replacement OEM (cheapest found 155.00 for one speaker! I had already talked to Crutchfield and found out to install aftermarket would require running new wires to the front and back from an aftermarket Head unit.
Took my speaker out and after very close inspection saw that the edge of the speaker foam material was not attached to the metal outside rim (had to look very closely in strong light to see it). Put a bead of hot glue all around this metal ring and and over the foam and it works like new!

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Rick R 2003 Renegade

I've had some success repairing old speakers with model airplane dope. It's not as heavy as hot glue.
Nitrate Dope: http://www.darehobby.com/accessories/dopethinners.htm

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my trail & highway ride (and occasional tow rig)
04 Liberty Sport with a 2.5" lift, ProComp 245/75R16 AT's and two Hella700FF lamps (more accessories to come)

my trail queen
95 YJ with a RE 4" lift, 33" ProComp Extreme's, M8000 Winch, Lockrite Locker up front, Super35 in the rear and 4.88 gears