For some of the stickiest stuff I go with the hard core Goo-Gone and the direct substitute K-1 Kerosene. Just rag the liquid solvent and let it soak into the adhesive. Be careful that the background you are removing the stickiness from can withstand the petrol-based products. Test a small area...
Hope you get the bug out of the tune soon.
The best of luck to you as you are home!