The Plymouth Caravelle rear deck lid accommodates a 5x7 inch speaker size in the listed location. Full-range units represent the compatible audio system types for the rear deck lid. These specifications cover the 1985 to 1988 model range.
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 Caravelle 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 face upward toward the cabin ceiling and rear glass, which affects how sound disperses rearward and reflects toward front passengers.
The 5x7 inch oval format is a mid-to-large speaker footprint that fits within the relatively flat, shallow panel of a rear deck lid without requiring deep enclosure depth behind the mounting surface.
An oval shape such as 5x7 inch offers a larger cone surface area than a standard 4 inch round speaker, which supports lower-frequency reproduction from a location that does not benefit from a dedicated enclosure or subwoofer reinforcement.
The 5x7 inch size in a rear deck lid position is acoustically suited to mid-bass and midrange frequencies, as the cone area supports movement of air volume sufficient for those ranges without a sealed cabinet behind it.
Full-range speakers are designed to reproduce the entire audible frequency spectrum from a single driver, covering low, mid, and high frequencies without the need for a separate crossover network or additional drivers.
A full-range driver in the rear deck lid of the Plymouth Caravelle handles treble, midrange, and bass output from one unit, which is consistent with the spatial constraints of a thin deck lid panel where installing multiple discrete driver types is not feasible.
The high-frequency dispersion of a full-range 5x7 inch driver is broader at lower frequencies and narrows at higher frequencies, meaning treble output from the rear deck lid position projects primarily upward and toward the rear window rather than evenly throughout the cabin.
The Plymouth Caravelle rear deck lid location specifies a 5x7 inch full-range driver across the 1985, 1986, 1987, and 1988 model years, indicating dimensional consistency in the mounting cutout over the production span covered by the specifications.
A rear deck lid mounting surface is typically constructed from compressed fiberboard or similar material, which may introduce panel resonance at certain bass frequencies produced by a full-range driver of the 5x7 inch size.