The Nissan Pathfinder rear location accommodates a 6x9 inch speaker size, supporting 6x9 inch units across all listed model years. Compatible types for the rear position include full-range speakers, which represent the audio system replacement options available. These specifications cover the years 1990 to 1992.
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 speaker location in the Nissan Pathfinder models covered by the specifications accommodates 6x9 inch drivers, an oval format that fits within elongated mounting cavities typically found in rear deck or rear door panel positions.
A 6x9 inch speaker has a larger cone surface area than standard round drivers, which increases air movement and extends low-frequency reproduction relative to smaller oval or circular formats installed in the same vehicle position.
The elongated geometry of a 6x9 inch driver also influences directionality, spreading sound along the horizontal axis of the oval more broadly than along the vertical axis, a factor relevant to rear-cabin dispersion in a multi-row vehicle like the Pathfinder.
Full-range is the sole compatible speaker type listed for the rear position across all years in the specifications, meaning a single driver in that location is designed to reproduce the entire audible frequency spectrum rather than a divided portion of it.
A full-range driver in a rear location handles low, mid, and high frequencies without a passive crossover network directing signal to separate woofer or tweeter components, making the rear mounting cavity a single-driver installation point.
The Nissan Pathfinder rear position, rated for 6x9 inch full-range speakers, pairs the extended cone area of the oval format with a driver type that must cover high-frequency reproduction, which places demands on the tweeter element or whizzer cone typically built into full-range designs of that size.
The consistent 6x9 inch full-range specification across all three model years in the data indicates a uniform rear mounting dimensions for the 1990, 1991, and 1992 Pathfinder, with no variation in cutout size or compatible driver type across that production span.