The Plymouth Volare rear deck lid accommodates a 6x9 inch speaker size across all listed model years. Full-range units represent the compatible audio system type for the rear deck lid location. These specifications cover the 1976 to 1980 range of model years.
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 deck lid of the Plymouth Volare is a horizontal surface positioned at the rear of the passenger cabin, typically spanning the width of the trunk opening beneath the rear window.
Speakers mounted in a rear deck lid position face upward toward the rear window glass, which influences how sound reflects into the cabin and affects the perceived stereo imaging for front-seat occupants.
The deck lid location places speakers at a distance from the primary listening position, meaning low-frequency output benefits from the relatively large radiating surface area that a 6x9 inch driver can produce.
A 6x9 inch oval driver occupies a larger surface area than a standard round driver of similar nominal diameter, allowing for greater cone excursion and improved low-frequency reproduction in a location where dedicated subwoofer reinforcement is typically absent.
The elongated oval geometry of a 6x9 inch speaker affects its dispersion pattern, producing a wider horizontal spread along the short axis and a narrower spread along the long axis, which interacts directly with the width of the deck lid mounting surface.
Full-range speakers are designed to reproduce the entire audible frequency spectrum-commonly from approximately 60 Hz to 20,000 Hz-within a single driver unit, making them suited for installations where only one speaker position per channel is available, as is the case in the Plymouth Volare rear deck lid.
In a rear deck lid installation, a full-range driver handles both midrange vocal frequencies and upper treble frequencies without a separate tweeter, meaning the high-frequency dispersion characteristics of the 6x9 inch cone determine how clearly treble content reaches forward-seated passengers.
The Plymouth Volare rear deck lid accepts a 6x9 inch full-range speaker across the 1976 through 1980 model years, indicating a consistent mounting cutout dimension and depth clearance throughout the entire production span covered by the specifications.
Mounting depth is a relevant constraint in deck lid installations because the structural cavity between the trunk and the passenger cabin is typically shallow, and 6x9 inch full-range drivers vary in their required mounting depth depending on the manufacturer and design.
The rear deck lid surface is generally composed of pressed fiberboard or similar material in vehicles of this era, which affects how securely a speaker basket can be fastened and how much vibration or resonance the mounting panel may introduce at higher volume levels.