Hi people!
I own a Yamaha Apx 900, wonderfull guitar, but I would like to upgrade it with the LR Baggs M1. The problem that i'm facing is this:
This is the guitar: http://static.musiciansfriend.com/de..._natural_V.jpg
As you can see the hole has this black plastic thing. http://www.webalice.it/riccardo.nisi...o/apx9hole.jpg
I wonder if it's a problem for the installation of the M1 or I just clamp the pickup upon that thing and that's it.
What do you think?

Thanks for your time.