The Plymouth Neon 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 location. These specifications cover the years 1995 through 2001.
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 is a horizontal surface positioned at the base of the rear window, above the trunk cavity, placing speakers in a rearward-facing or upward-angling orientation relative to the cabin.
Mounting on the rear deck lid typically involves a flat or slightly contoured panel, where speaker depth clearance is constrained by the proximity of the trunk structure beneath.
The 6x9 inch oval format is a non-circular footprint with an elongated axis, which allows a larger cone surface area than a standard round speaker within the same lateral mounting space.
A larger cone surface area, as found in 6x9 inch drivers, produces greater air displacement, which supports stronger low-frequency output from a location that is physically distant from front-seat listeners.
The Plymouth Neon rear deck lid accommodates 6x9 inch drivers across all listed model years, a mounting cutout dimension that determines the maximum frame diameter and cone width permissible in the opening.
The rear deck position places speakers behind passengers, meaning sound must travel forward and reflect off rear window glass and headliner surfaces before reaching the listening area.
Full-range speakers are single drivers designed to reproduce low, mid, and high frequencies without an external crossover network, covering roughly 50 Hz to 20,000 Hz within one unit.
In a rear deck lid location, a full-range driver handles bass reinforcement, midrange vocal reproduction, and high-frequency content simultaneously without requiring additional components such as separate tweeters or woofers.
The 6x9 inch form factor is associated with enhanced bass response relative to smaller oval or round formats, which is acoustically relevant in a rear deck position where low-frequency reinforcement is a primary role.
Full-range compatibility in a rear deck application means the driver operates without requiring a passive crossover or amplifier channel configuration specific to a single frequency band.