Hello all, I am curious about the gel cell batteries and or dry cell batteries. I went to buy a new battery and with no luck the place did not have a replacement battery. Asked if i could use the red top gel cell, which i use in the other car which is awesome, but he said that they have vents also and need to be mounted for ventilation and not the trunk. Has anyone installed one in there car or will even a dry cell work in there. Or am i stuck installing a factory one.. Thanks guys.