Which should be used for a install? I recently picked up a VW with a Monsoon OEM amp in the trunk with a AVIC-Z1 pre-installed. I am not sure if the amp in the rear is even wired to the head unit. Is there an easy way to check for this? Should I use the OEM Monsoon amp in conjunction with the head unit or the head unit alone?

Thanks!

Anyone?

You probably already installed this, But I used the Bose amp in my wifes 1998 Acura RL with great results.