I was just wondering if anyone has found a good DIY for this yet. I STILL can't find one after all these years. Any success stories or links? Thanks.

 

I put this: Infinity BassLink Powered subwoofer: 200 watts and a 10" sub at Crutchfield.com in an older BMW and it was VERY easy...

Maybe try that?

 

I'm looking more for the tutorial on installing the amp/sub itself.

 

I have the same car. This will help:
https://www.myg37.com/forums/g37-sed...b-install.html

I got the harnesses but if you do you loose your steering wheel ctrls and have to tap into your harness with 3 wires not 4 if you just tapped in the first place. Let me know if you need help.

 

Trying to do this as i type just found out i dont have bose....so now i need to i guess run a remote from the fuse box and mount amp need to find out where the fuses are and which fuse