The Plymouth Voyager rear door panel accommodates a 6x9 inch speaker size across all listed model years. Full-range units represent the compatible audio system replacement types for the location. The specifications cover the years 1996 to 2000.
A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems.
Additional Notes
The rear door panel location on the Plymouth Voyager positions speakers within the lower portion of the door structure, where the enclosure depth and baffle area are determined by the door's inner panel geometry.
A 6x9 inch speaker occupies a larger cone surface area than standard round formats, which increases low-frequency displacement capability and suits the rear door panel's role as a primary bass and midrange reproduction point in a cabin audio layout.
The elongated oval geometry of a 6x9 inch driver requires a mounting cutout and frame clearance that accounts for the non-circular footprint, meaning the door panel cavity on the Plymouth Voyager is dimensioned to accommodate that specific aspect ratio rather than a circular alternative.
Rear door panel locations are generally more distant from front-seat listeners than dashboard or front door positions, and the larger cone area of a 6x9 inch driver supports output levels sufficient to project sound across that increased cabin distance.
The Plymouth Voyager rear door panel's compatibility with full-range speakers indicates the mounting location is intended to handle the full audible spectrum from a single driver rather than relying on a dedicated crossover network or separate tweeter mounting point in the same location.
Full-range drivers are designed to reproduce low, mid, and high frequencies from a single voice coil and cone assembly, making them mechanically self-contained units that do not require an external crossover component for basic operation in the door panel position.
The 6x9 inch format, when loaded into a door panel enclosure, operates in a semi-infinite baffle condition, where the door cavity behind the cone influences the low-frequency extension and resonance behavior of the driver.
Because full-range is the sole compatible type listed for the Plymouth Voyager rear door panel across the specified model years, the mounting depth and baffle configuration at that location are suited to the physical profile of full-range 6x9 inch drivers specifically.
The rear door panel location in a minivan body style places the speaker at or near seat level for rear passengers, directing acoustic output laterally into the cabin rather than from a forward-facing or overhead angle.