is it possible to add the oem subs to a 2010 e60? or maybe after market anyone know of a harness to get rca channel out?

 

If there is a harness available try these guys.
https://technicpnp.com/


I want to say you have some good BMW installers in Orlando, they do Bimmertech installs for the e90 platform. BimmerTech Amp Group Buy

 

OMG haha I was just looking for something like this. I have a single 10" solo kicker (square) with that small 500watt mono alpine amp stuck to it in my old car. I just picked up a 2010 E60 and I wanted to put it in it. I love this site.