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Customer Reviews

Axxess AXDSPX-GM31

Digital signal processor and T-harness — for select 2019-up Chevy and GMC vehicles without a factory amplifier

MFR # AXDSPX-GM31

Axxess AXDSPX-GM31

Axxess AXDSPX-GM31

Digital signal processor and T-harness — for select 2019-up Chevy and GMC vehicles without a factory amplifier

MFR # AXDSPX-GM31

2 reviews
View this product

Axxess AXDSPX-GM31

Crutchfield customer from Kingsport , TN on 4/10/2021

Verified customer (What's this?)
Verified employee purchase (What's this?)

Easy to install, and great to add multiple amps if needed.

Pros: Gain adjustment control knob for subwoofer

Cons:

Crutchfield response on

0 of 0 found this helpful

Axxess AXDSPX-GM31

Shawn from FORT WAYNE, IN on 3/26/2021

2021 Chevrolet Malibu

Verified customer (What's this?)
Verified employee purchase (What's this?)

Initials thoughts..... it blew my stock tweeter in my 2021 Malibu. Unit was in weird state and output 8VRms noise in all channels to my JD400 amp and blew my new stock tweeter. I would suggest doing a reset on the device before plugging in any powered amp and verifying preamp outputs with DMM or a scope. Now I've replaced all speakers in car with Alpine R series and sounds great. Just wish the chime level actually worked. I cannot lower it anymore on my factory head and I have it set as low as it will go on the dsp. Had intermittent speaker output caused by bent T harness connector pins.

Pros: Easy to install and love the ease of install." After I found the factory amp since Chevy moves them around from year to year. Couldn't find good info for ANC on 2021 Malibu. Had to disconnect all 3 mics in the headliner.

Cons: Was programmed in a weird state and blew factory tweeter. Do a reset first via Bluetooth before hooking up amp. Also t connector pins are weak and will Bend.

Crutchfield response on

2 of 2 found this helpful

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