I've been searching like an animal and still havent found what I'm looking for, so if someone could could just post a thread that this has already been discussed in that would really help...But what I want to do is purchase an N2 brain for my N1, and if I did that, is the solder bypass done on the brain of the N2 or the HU??

Thanks, and sorry if this has been discussed already which im sure it has.

Not sure if this is true but from what I've been reading, the NX brains are interchangeable. The mod would happen on the head unit. Someone correct me if I'm wrong.

i have n1 headunit with n2 brain it works perfect