Any mount that will suction to the dash/plastic of the 350?

[Chromatic]

Hey guys.. (and ladies)..

 

I have a fairly large need to find a mount that I can use that will suction/fit to the plastic bits of our cars.. Dash.. that bit behind our seats on top of the two cubby's you can open.. as I do a lot of Recording, and have a ridiculous amount of gadgetry in the car.. For this purpose I will be mounting a higher end Bluetooth speaker that will run off my passport Max Radar/Laser detector just behind the driver seat (on top of the plastic there above the two slots you can push in to put some documents, etc , in..)..

 

The regular suctions cups mount on glass, or the body of the car (outside).. but the plastic.. not a chance. I've looked around but other than some permanent adhesive I can't find anything.

 

Any ideas?