1989 Buick Century Speaker Sizes
The 1989 Buick Century speaker size chart displays factory audio specifications for two locations: dashboard and rear deck lid. Information covers replacement and upgrade options for factory and aftermarket speakers. The chart provides specifications needed to identify compatible audio system components for dashboard and rear deck lid positions in the 1989 Buick Century.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4x6 | Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1989 Buick Century Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01989 Buick Century Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN | 7"×2" | 180×50 | Standard size for basic car radios with small display or no display |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1989 Buick Century came equipped with two distinct speaker locations requiring different sizes, with the dashboard accommodating smaller drivers while the rear deck lid provides space for larger units.
- Dashboard speakers measure 4x6 inches and accept full-range drivers, which integrate multiple frequency ranges into a single unit rather than requiring separate components for different sound ranges.
- Rear deck lid positions utilize 6x9 inch full-range speakers, offering substantially more surface area than the dashboard units for potentially enhanced bass response and overall output capability.
- The single DIN radio specification indicates a standard aftermarket head unit installation size, allowing owners to upgrade the source equipment without requiring dash modifications or adapters.
- Full-range compatibility in both locations suggests the factory audio system relied on individual drivers to reproduce the entire audible spectrum without dedicated tweeters or woofers in separate housings.
- The rear deck placement typically benefits from the trunk cavity acting as an enclosure, which may provide additional acoustic reinforcement compared to the more exposed dashboard mounting points.
- Replacing the dashboard speakers might take priority for some listeners since these forward-facing drivers project sound directly toward occupants, potentially offering more immediate improvements to vocal clarity and mid-range detail.
- Component speakers could theoretically replace the full-range units in either location, though such upgrades would require additional mounting considerations for separate tweeters and possibly external crossover networks.