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Go to Napa and get an Adhesive Removing Wheel, I think 3M makes it. Its a rubber wheel that peels off the trim tape and doesn't hurt your paint. They are about $20 at my local Napa, but 150% worth it. I use them to remove pinstripes, adhesive tape, tree sap, and so on. I did my whole Yukon including the badges, my brothers jeep, my brothers eclipse, and a few other small projects and still have 50% of the wheel remaining.
Here's one http://www.amazon.com/3M-7498-STRIPE-WHEEL-W-ARBOR/dp/B00063VT0G