09-24-2025, 10:02 AM
1. I have not but there are detailed threads here and on swede speed forum.
2. It depends on your system. I run high performance and went for the HK sub 4 ohms impedance. Without extra amplifier the sound was a bit meh. Adding a designated amp in the trunk made the sound picture complete. The sub with amp makes the difference. I tried to activate 210 02 with subwoofer but nothing happened. No power on pin 8/16 or 6/14 (wich are my free pins in my green plug of my 5 fin amplifier).
3. See 1
4. No, it's a plugnplay job. I had no speaker cable pre installed so I ran the front woofer signals to my aftermarket amp and from there to the subwoofer. Only space I lost was a square in the trunk were the non existing spare should be. 30x20x5cm. You don't see anything of the installation without lifting the trunk lid.
2. It depends on your system. I run high performance and went for the HK sub 4 ohms impedance. Without extra amplifier the sound was a bit meh. Adding a designated amp in the trunk made the sound picture complete. The sub with amp makes the difference. I tried to activate 210 02 with subwoofer but nothing happened. No power on pin 8/16 or 6/14 (wich are my free pins in my green plug of my 5 fin amplifier).
3. See 1
4. No, it's a plugnplay job. I had no speaker cable pre installed so I ran the front woofer signals to my aftermarket amp and from there to the subwoofer. Only space I lost was a square in the trunk were the non existing spare should be. 30x20x5cm. You don't see anything of the installation without lifting the trunk lid.