shrink wrap film residue- how to remove

Thanks falconquest for your post. I was thinking of using that one as well. One would figure it does work for high gloss pianos but are grand pianos using water based or oil type paint?

Audioman, if it is indeed an automotive finish, try a automotive clay bar to rub, press and roll across the finish. The clay bar is designed for cleaning paint, road grime etc. You should be able to purchase some at an Auto parts store that also furnishes paint to body shops. If not griotsgarage.com is a good source.

Remember to use the spray lubricant with clay bar (you can just use a "quick detailer" spray). Don't rub them dry.

Hi all,

Thanks for all the great ideas. I need to work up the courage and confidence and be sure the method I will be going with will work and I can rest easy. I appreciate all the ideas so far presented here. 
My dealer contacted his rep and they seem to think its a moisture issue and to use a hair dryer to get out the stains. Keep it 6-8 inches away and go back and forth on the speaker. They also mentioned to look for a furniture restorer to repair the speakers. I did ask one company and they wanted me to bring the speaker box cause it would need to be re-lacquered. I explained the speaker has multiple drivers and it would be a huge chore to disconnect everything..ughh...anyways, I was looking at Meguires Compound today but not sure how abrasive that would be to the clear coat finish..just giving a quick update..still trying to get something to clean them..thanks all.

2007audioman

For paint finish, the best polish to remove marring and is Menzerna polish. Expensive but way better than Meguires.

You want both Super Intensive and follow by Final polish, both by Menzerna.

Polish by hand.
I used it on my Wilsons W/P 7s before, as well as my cars.