  We show that the Ruelle dynamical zeta function on a closed odd dimensional
locally symmetric space twisted by an arbitrary flat vector bundle has a
meromorphic extension to the whole complex plane and that its leading term in
the Laurent series at the zero point is related to the regularised determinant
of the flat Laplacian of Cappell-Miller. When the flat vector bundle is close
to an acyclic and unitary one, we show that the dynamical zeta function is
regular at the zero point and that its value is equal to the complex valued
analytic torsion of Cappell-Miller. This generalises author's previous results
for unitarily flat vector bundles as well as M\"uller and Spilioti's results on
hyperbolic manifolds.
