Possible to replace in-cabin heater pipe without removing dashboard?

[DanSC]

Hello,

I recently replaced the heater core and o-rings in my 2001 S80 2.9, but still have a slow drip from one connection where the pipe enters the core. Unfortunately, I suspect a crack in the pipe. Is it possible to replace the pipe without removing the dashboard? It looks plausible, but VADIS doesn't have a procedure, and I haven't found one in the forums.

For reference the pipe is #17 in the attached diagram.