I noticed that the Goldwood Speaker is a typical 8 Ohm DVC speaker...which is designed for home theater use. Isn't the factory sub something like a 2 Ohm DVC? I don't know enough about speaker Impedance to know what difference that makes though...Maybe
@Jerry Bransford can enlighten us?
Otherwise, that looks like a nice, inexpensive solution!
That Goldwood is not a good replacement since it is rated as a 8 ohm DVC, meaning it wants 16 ohms wired in series, or 4 ohms wired parallel. The factory OEM amp is rated at 1 ohm, and around 50-75 watts, not really sure about the wattage but somewhere around 50-75 watts.
That Goldwood 8 ohm DVC will be underpowered when wired at 4 ohms (parallel). So the OEM amp will be cut from 50-75 watts to about 12-19 watts as most of the amps wattage will be restricted by the 4 ohm resistance of the Goldwood. Probably better than stock, but stock is about as bad as it gets.
Wiring subwoofers to the wrong amplifier impedance may blow the amplifiers and/or lead to clipping and blown/burnt voice coils in subwoofers.
***Update - Read the factory service manual to confirm that the OEM subwoofer/amp is rated at 80 watts:
AMPLIFIED SUBWOOFER
DESCRIPTION
The available amplified subwoofer is mounted
within the center console. The amplified subwoofer is
rated at 80 watts. The amplified subwoofer should be
checked if there is no bass output noted from the
center console speaker. The amplified subwoofer can
not be repaired or adjusted, and if faulty or damaged,
the unit must be replaced.
OPERATION
The amplified subwoofer provides low frequency
bass and receives inputs from the front and rear
speaker circuits.