Dead battery, went through trunk, jumped, now trunk will not operate? Re-set?

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I took it to the local GMC but nobody there had ever worked on an xlr? They replaced the cigarette fuse. $140 I don't smoke. They spoke right away about having to remove the lid? The battery went dead. really, remove the lid? No re-set button or? Someone mentioned Fluid? where? Know of a great mechanic near Santa Rosa,CA 95436 ? Thanks so much... jc