I added a small subwoofer to my 2022 Civic Si last weekend. It took 3-4 hours to build and install from start to finish. I had the LOC and sub from a previous car and added a small mono amp.
Here is the LOC and amp on a plate I made from 1/4" plexiglass:
I grabbed the signal from the existing sub and it seems to work fine. Amp and LOC in their final location:
Power wire runs down the driver side and through a grommet in the firewall:
Subwoofer level control mounted to switch blanks to the left of the steering wheel:
Subwoofer:
Overall, pretty easy to install. I did some much larger builds in my other cars that took several days. This was just using some things I had in the garage and is only to add a little bass to the existing sound system.
Here is the LOC and amp on a plate I made from 1/4" plexiglass:
I grabbed the signal from the existing sub and it seems to work fine. Amp and LOC in their final location:
Power wire runs down the driver side and through a grommet in the firewall:
Subwoofer level control mounted to switch blanks to the left of the steering wheel:
Subwoofer:
Overall, pretty easy to install. I did some much larger builds in my other cars that took several days. This was just using some things I had in the garage and is only to add a little bass to the existing sound system.