M series passive mode

Hi all,
This may be a retread topic, but my search skills are poor.

Has anyone successfully wired a passive mode into an M2000/2500? I might be getting an M2500 and am wondering about the difficulty of adding passive mode if it's possible.

Thanks,
L

If you don't get any responses here, check this post: RESOURCE: Paul's Technicalities sub-forum on bassesbyleo.com.

Paul was the designer of the M-series basses and he would be able to answer your question over on Ken Baker's site.
If you do that, please post a follow up here.

Hope this helps.