2016 CX-5 Audio upgrade thread

Bumping my own bump...

The D pillar speakers were extremely easy to replace with a pair of Infinity Ref 3022CFX, and the rear doors with a pair of Infinity Ref 6522EX. I used a pair of PAC NSB710 adapters for the rear doors along with the Metra 72-5602 harness.

I also installed a Kenwood KSC-SW11 sub under the driver's seat using the PAC AOEM-MAZ2 interface. That made a BIG difference! I'm able to turn the bass down a little on the Bose system, and instead drive it through the more capable (clearer, less muddy) Kenwood sub. A little futzing around with the gain and low pass filter and I'm really liking this change.

I left the front doors alone as much as it pains me. They only get bass frequencies, and installing the Infinity Ref 6522EX would have been a waste. Possible future upgrade with the Earthquake Sound i82SWS or Infinity REF-FLEX8, but I feel like I'm at the point of diminishing returns.

Total investment was $440 plus a few tools, and it was worth every cent. Is the PAC AOEM-MAZ2 required or just a plus. I would think the sub comes with it's own. Don't know much about this stuff... learning.
Gonna follow your lead and install the Kenwood sub.
 
Bumping my own bump...

The D pillar speakers were extremely easy to replace with a pair of Infinity Ref 3022CFX, and the rear doors with a pair of Infinity Ref 6522EX. I used a pair of PAC NSB710 adapters for the rear doors along with the Metra 72-5602 harness.

I also installed a Kenwood KSC-SW11 sub under the driver's seat using the PAC AOEM-MAZ2 interface. That made a BIG difference! I'm able to turn the bass down a little on the Bose system, and instead drive it through the more capable (clearer, less muddy) Kenwood sub. A little futzing around with the gain and low pass filter and I'm really liking this change.

I left the front doors alone as much as it pains me. They only get bass frequencies, and installing the Infinity Ref 6522EX would have been a waste. Possible future upgrade with the Earthquake Sound i82SWS or Infinity REF-FLEX8, but I feel like I'm at the point of diminishing returns.

Total investment was $440 plus a few tools, and it was worth every cent.
Hi, did you keep the Bose amp when you installed the Kenwood sub? I guess you tap the signal behind the radio head, if so?
 
:
2019 CX-5 GTR
you keep the Bose amp because it drives the other speakers. You can get clean signal right before the amp.

you will want to review this:

and

https://www.mazdas247.com/forum/ind...2-adapter-install-help.123863126/post-6680064

Which references the efforts here:
https://www.mazda6club.com/threads/...w-bose-full-system-breakdown-analysis.440044/

There are pinout diagrams for the Mazda 6 BOSE with are identical to the CX5 BOSE system with this small note:

"The only difference I see between the Mazda 6 and CX-5 is the remote turn on (acc) wire is violet (CX-5) instead of red/black (Mazda 6), but both are in the 2D pin location on the middle connector plug on the Bose amp."
 
The Polk DB652s have a 4-ohm impedance and the factory ones are like 2 ohms, so that might impact your bass response. Have you tried messing around with the EQ settings to drive more bass to them?
Update. Putting in Powerbass 2 ohm speakers (leaving out the tweeter components). Crutchfield says will work well with the Bose amp that pumps the bass to the front doors. Going from 9" woofers to 6". Will be interesting to see if I get the punchier bass, and less muddy sound. If I am not totally satisfied, I might put in the Kenwood subwoofer under the driver's seat.
 
MY BOSE UPGRADE STORY. After weeks of thought and trial and error, while trying to keep it all under $500, the job is done!

Gear upgrades:
Front dash 3 speakers: Polk Audio DB351. Thanks to you all on this forum that recommended those. Crutchfield said only the center would fit, but the others went in just as well on the corners. Cleaner tones, crisper tones on highs and high mids. Worth the about $100.

Rear doors: Polk Audio DB652. Made the back half of the car relevant! I fade to the back now about 2 clicks. Enjoying more of that full car sound. Dash can be too dominating. I think it was no more than $120.

Front door woofers (the biggest problem). Tried Infinity REF FLEX 8's. Too big for the enclosure. Thought about a sub woofer, Kenwood mentioned in this thread. But, talked to Crutchfield and they recommended ProBass 6" 2 way woofers (just don't install the tweeter). I was skeptical replacing the 9" 2 ohm Bose woofers with the 6" 2 ohm ProBass. But, to my surprise, not only cleaner, punchier bass, but no discernible loss at the lowest end of the audible spectrum. Am I gonna vibrate the car next to me at the stoplight? No. But, I listen to music seriously. The Bose woofers would vibrate the car but it was cloudy sound. These were around $120 (check all the prices as they may be lower). I am so happy I will send back the sub-woofer I ordered. Not needed.

About $360 + $100 for the dash install (tricky wiring in a tight space so I decided to have a pro help). $460 for a significantly cleaner sound. No need to mess with the amp, or head unit. That's a lot of headaches for little gain in my assessment. The amp provides enough juice, unless you want to serenade the neighborhood. Have at it.

Now to use my Qobuz hi-res streaming service to get the most out of it all. I'll never listen to an MP3 again. This is an even bigger difference than upgrading your gear.

Thanks to all who have given me advice along the way.
 
Last edited:
:
'16.5 Mazda CX-5
I'd like to experiment with the dash center speaker. If you have one, labeled KE68 66 960, I'll buy it. Please PM me and we'll work out the transfer.
 
I'd like to experiment with the dash center speaker. If you have one, labeled KE68 66 960, I'll buy it. Please PM me and we'll work out the transfer.
If you are asking about my speaker, I have an extra Polk
Bumping my own bump...

The D pillar speakers were extremely easy to replace with a pair of Infinity Ref 3022CFX, and the rear doors with a pair of Infinity Ref 6522EX. I used a pair of PAC NSB710 adapters for the rear doors along with the Metra 72-5602 harness.

I also installed a Kenwood KSC-SW11 sub under the driver's seat using the PAC AOEM-MAZ2 interface. That made a BIG difference! I'm able to turn the bass down a little on the Bose system, and instead drive it through the more capable (clearer, less muddy) Kenwood sub. A little futzing around with the gain and low pass filter and I'm really liking this change.

I left the front doors alone as much as it pains me. They only get bass frequencies, and installing the Infinity Ref 6522EX would have been a waste. Possible future upgrade with the Earthquake Sound i82SWS or Infinity REF-FLEX8, but I feel like I'm at the point of diminishing returns.

Total investment was $440 plus a few tools, and it was worth every cent.
Did you need a speaker harness for the D pillar speaker connection?
 
I opted for Power Bass L2 6c instead and had great Results replacing the door woofers in the front. The bass is cleaner, punchy and does the job. I don’t feel I need the subwoofer. I didn’t install the tweeters as they certainly weren’t needed with the Dash three speakers. This was Crutchfield‘s recommendation and a paid off. And those speakers aren’t expensive at all
 
Have a loook at this woofer, too. It is not very sensitive, but it doesn't have a foam surround and has an excellent Qts for a no box situation.


Verify the available mounting depth. It should get below 40 Hz well enough.
for the Bose system I got good results from the 2ohm component speaker PowerBass 6.5" If fit easily with the adapter Crutchfield sent. Just don't install the tweeter it comes with. Don't know if a 4ohm speaker will do the job. Now, I did up my bass settings a couple of clicks. With my overall upgrades I put in speakers more power hungry than I replaced. So I crank the volume 5 more clicks. The sound is cleaner and crisper, however. with the hi-res Qobuz streaming service (amazing how many people spend a lot on a car audio upgrade only to continue to play MP3's) you can hear how different recordings are in volume and intonation. I adjust the bass/treble, and fade to rear when highs are too harsh. Not a hassle. Takes about 10 seconds.

PowerBass installed. Punchy and crisp. Maybe not enough if you listen to a lot of hiphop or other subwoofer dominant music. great for jazz, most pop and rock. Will still make your rear view mirror vibrate.
Untitled.png
 
Last edited:
Bumping my own bump...

The D pillar speakers were extremely easy to replace with a pair of Infinity Ref 3022CFX, and the rear doors with a pair of Infinity Ref 6522EX. I used a pair of PAC NSB710 adapters for the rear doors along with the Metra 72-5602 harness.

I also installed a Kenwood KSC-SW11 sub under the driver's seat using the PAC AOEM-MAZ2 interface. That made a BIG difference! I'm able to turn the bass down a little on the Bose system, and instead drive it through the more capable (clearer, less muddy) Kenwood sub. A little futzing around with the gain and low pass filter and I'm really liking this change.

I left the front doors alone as much as it pains me. They only get bass frequencies, and installing the Infinity Ref 6522EX would have been a waste. Possible future upgrade with the Earthquake Sound i82SWS or Infinity REF-FLEX8, but I feel like I'm at the point of diminishing returns.

Total investment was $440 plus a few tools, and it was worth every cent.
I heard the D pillar speakers were a lot of work to get to. How was it so easy?
 
:
'16.5 Mazda CX-5
I had one of my dash speakers start buzzing. So I swapped them around and put the bad one in the middle. The middle plays even with centerpoint off. To kill the buzz, I unplugged it and have found the sound to be better. Most of the screeching comes from that center channel. the stereo image is better, too. I recommend just unplugging it. Or adding a 10 ohm, 20 watt+ resistor in series with the driver to cut the output several dB.
 
I opted for Power Bass L2 6c instead and had great Results replacing the door woofers in the front. The bass is cleaner, punchy and does the job. I don’t feel I need the subwoofer. I didn’t install the tweeters as they certainly weren’t needed with the Dash three speakers. This was Crutchfield‘s recommendation and a paid off. And those speakers aren’t expensive at all
Just got the L2 6C’s myself. How and what did you modify to get them to fit the front doors? Thanks!
 
Just got the L2 6C’s myself. How and what did you modify to get them to fit the front doors? Thanks!
Wondering if I got the wrong adapters from Crutchfield? They only way the supplied ones will fit is if I cut bigger holes in the door. That doesn’t seem right.
 
Top