Variable minimum and maximum axis values?

Hello all,

I have 2 charts on top of eachother - an area graph and column chart. I need them to match up on the x axis, meaning, meaning the bar charts start at 0 on the area graph. I can do this by setting the axis minimum and maximum of the column chart to -55 and 55, or -45 and 45.

Is there some way to set these maximum and minimum axis values equal to a cell on the sheet, or a formula? If I set them to 'auto' they won't always be equal to one another.

Thanks