1986 Pontiac Bonneville Speaker Sizes
The 1986 Pontiac Bonneville speaker size chart provides factory specifications for replacement or aftermarket audio system components. Information covers speaker locations in the dashboard and rear deck lid areas. Details include factory audio specifications to assist with upgrade or replacement installations. Data supports aftermarket component compatibility for the factory system.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Rear Deck Lid | 4x10 | Full-Range |
|
1986 Pontiac Bonneville 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: 01986 Pontiac Bonneville 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 1986 Pontiac Bonneville features two distinct speaker locations with different size requirements, suggesting a basic two-location audio system typical of vehicles from this manufacturing period.
- Dashboard speakers use a 3.5 inch format, which represents one of the smaller factory speaker sizes and may provide limited bass response due to the reduced cone surface area.
- The 4x10 inch oval speakers in the rear deck lid offer approximately 31.4 square inches of cone area compared to the dashboard speakers' roughly 9.6 square inches, potentially providing improved lower frequency reproduction.
- Both speaker locations specify full-range compatibility, indicating that factory designs intended each speaker to reproduce the entire audible frequency spectrum without dedicated tweeters or subwoofers.
- Upgrading the rear deck lid speakers might yield more noticeable sonic improvements than dashboard replacement due to the larger cone surface area and typically superior mounting depth available in deck lid installations.
- The single DIN radio specification indicates a standard head unit mounting opening measuring 180mm x 50mm, which remains compatible with numerous aftermarket receivers manufactured today.
- Aftermarket speakers in the 3.5 inch size category often incorporate materials like polypropylene cones or silk tweeters that may outperform original paper cone constructions in frequency response and durability.
- The 4x10 inch format, while less common in contemporary speaker manufacturing than 6x9 inch options, still receives support from major audio manufacturers offering coaxial and component designs.