I am working on a pickup swap from the older Dual Source system to a new Anthem and am finding that the old adhesive used for the Velcro under the battery bag and preamp on the old system is not coming off cleanly at all. Granted the Velcro has been in there for about 8 years...

Is Naptha an effective solvent for removing the adhesive layer under the Velcro without staining the rosewood underneath? Any other tips for getting that goo out of there cleanly?

Any and all responses appreciated !!