I have a 06 G35 and it is on lease so i dont think I am going to go out of my way to change all of the speakers etc. All I want to do is add a sub in the trunk (probably a sealed 12in.) I installed the subs in my old car but I was wondering what I have to do in order to get it to work on this bose system.

Is my best option to buy an amp that accepts differential balanced input? and just slice into the line from the HU before it gets to the stock amp?

I rather not limit by options by having to buy an amp that accepts differential balanced inputs so please let me know what my best bet is.

One more thing- how is g35 trunk without dynamat? Will I get a ton of rattling?