[BMW_Sweden]

Hello,
I sold my car in December but I kept my upgrade package:

2x 8" Earthquake 150w RMS 4ohm underseat subwoofers (plug-n-play)
2x adapter rings to the subs for easier install
1x Alpine MRV-M500 500W 2ohm / 300W 4ohm rms amp
1x AudioControl LC2i High to low converter
+ Power and ground cable for the amp and all other needed cables

also have 2x Eton speakers for the front doors (mid + tweet)

If it's installed as I did then all you need is usual tools, everything is included.

I had Harman Kardon in my car, I can't say if it works with the other setups.

I was thinking around ~€/$ 600 for the whole package + shipping