Help - convertible top repair - hydrualic hose replacement

have a 2006 325 Convertible and am trying to replace one of the hydraulic hoses that I suspect was leaking. It is numbered 34 and leads from drivers side hydro-cylinder to hydaulic control unit.

This seems like it should be a simple repair, but I cannot figure out an easy way to access the connection at the hydraulic control unit. Do I need to pull the entire top off to get to it?

Thanks to anyone who can help.
Jon
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