Hi All,
The past 2 weeks, I've been researching what options I have for adding a subwoofer or complete sound system to my Partner (van).
This is what I came up with:
- Placement of the subwoofer(s)
I discovered a lot of unused space underneath the floorboard of the loading space. I will be able to make 2 separate boxes for 2 subs. - Retrieving the audio signal
I found out this is the hardest part of my journey. After lots and lots of reading on different forums, I came up with this:
First reprogram the audio part of the NAC headunit with the Arduino+CANShield (vlud) to option 2 (Standard hifi amp) instead of option 4 (Arkamys system) which will remove the equalizing etc.
Normally the options for subwoofer, center, ... adjustment should be available in the menu of the NAC
I've already bought an NAC extension cable from AliExpress for making my connections. (I don't want to modify the original cable loom).
As my partner is a van, it only has the front door speakers. I hope the audio signal for the rear speaker will be fed through the NAC unit where I can go to my external amplifier (Hi-Level input).
OR maybe the signal for subwoofer and/or center speaker become available..? - When this works, I will replace the front door speakers as well, also powered with an external amplifier.
Does anyone know if the NAC unit can deliver non-amplified audio signal ? Maybe on the 'subwoofer' or 'center' output pins ? I had this option in my BMW when I completely replaced the audio system. Then all amplifier outputs became low level audio signal.
If anyone has more information/opinions about this subject, please discuss...
When I start executing this project, I will post some pictures.