1999 Buick Riviera Speaker Sizes
The 1999 Buick Riviera factory audio system includes front door panels that accept 6.5 inch speakers and a rear deck lid that accommodates 6x9 inch units. Selecting proper replacement and upgrade options involves evaluating midbass and full-range driver designs.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1999 Buick Riviera Speaker Replacement Summary
2
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 0 High: 0Replacement priority:
High: 1 Medium: 1 Low: 01999 Buick Riviera Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1999 Buick Riviera front door panels accommodate 6.5 inch speakers, which can function as either midbass drivers or full-range units depending on the audio system configuration and whether separate tweeters are present.
- Rear deck lid locations in this vehicle accept 6x9 inch full-range speakers, which typically provide broader frequency response coverage due to their larger surface area compared to the front locations.
- Replacing factory speakers with aftermarket units of the same size generally offers potential improvements in sensitivity ratings, power handling capacity, and frequency extension at both ends of the audio spectrum.
- The front door speaker positions often take priority during upgrades since they sit closer to listeners and typically handle critical midrange frequencies that affect vocal clarity and overall sound staging.
- Full-range speaker types are designed to reproduce multiple frequency bands without requiring additional components, though dedicated midbass drivers paired with separate tweeters can provide more precise frequency separation.
- The 1999 Buick Riviera supports both single DIN and double DIN radio installations, which affects available aftermarket head unit options and potential integration of amplifiers or digital signal processors.
- Oval 6x9 speakers typically offer advantages in low-frequency extension compared to round 6.5 inch units due to increased cone area, though installation depth and mounting considerations vary between locations.
- Aftermarket speaker installations may benefit from sound dampening materials applied to door panels and deck surfaces, which can reduce unwanted vibrations and improve acoustic performance.