BMW 4 Series - Tech Talk F32,F33,F36,F82,F83
Hi all
To cut a long story short, I have a base Stereo system (4 door speakers, 2 under seat woofers, no tweeters, no amp) and I am in the market to upgrade to a semi decent system with an amp. I have the NBT HU thankfully.
I see there is a harness that can be bought in the US that allows you...