The Ford Tempo rear deck lid accommodates 6x8 inch speakers and supports a 6x9 inch speaker size across the model's available configurations. Full-range units represent the compatible audio system replacement type for all listed entries. These specifications cover a range of years from 1985 to 1994.
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 Ford Tempo 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, a orientation that projects sound forward into the listening area through reflective dispersion rather than direct radiation.
The 6x8 inch oval format appears in the Ford Tempo across 1985, 1986, 1987, 1988, 1989, 1990, and 1992 model years for this location.
The 6x9 inch oval format is specified for the Ford Tempo in 1991, 1993, and 1994 at the rear deck lid position.
A 6x8 inch oval speaker has a cone surface area that supports extended low-frequency reproduction relative to smaller round formats, while the elongated shape allows fitment within the dimensional constraints of a sedan rear deck panel.
The 6x9 inch oval format offers a marginally larger cone area than the 6x8 inch, which increases the potential for low-frequency displacement and acoustic output within the same general mounting footprint category.
Full-range drivers are designed to reproduce the entire audible frequency spectrum - typically from roughly 50 Hz to 20 kHz - from a single driver unit without a dedicated crossover network directing frequencies to separate drivers.
In a rear deck lid location, a full-range driver handles bass, midrange, and high-frequency content simultaneously, which is significant because no additional tweeter or woofer is specified for the position in the Ford Tempo data.
The rear deck lid mounting surface is structurally part of the trunk lid or body shelf, meaning the rigidity and resonant properties of the surrounding sheetmetal and trim directly influence the acoustic coupling between the speaker and the cabin.
Oval speaker formats such as 6x8 and 6x9 are common in rear deck applications because the horizontal space available across the deck typically exceeds the depth available front-to-back, favoring a wider, shorter mounting cutout over a circular one.
The mounting depth requirement of the installed speaker is a relevant factor for rear deck lid positions, as clearance beneath the deck surface is constrained by trunk lid geometry and structural reinforcements.