49 CPMY Power/speaker cable routing to aft deck lights

[gildnerw]

Hello all. Just purchased a 2006 49 CPMY. I've been spending some time reviewing the electrical system, speaker wiring etc. I need to replace the speaker wiring that goes to the speakers installed in the aft deck overhead and cannot figure out the routing for the speaker wiring, the aft nav light, cockpit spots and aft deck overhead lights which are all attached to the overhead. I can follow the wires from the lower helm electrical panel up behind the upper helm station but lose the routing somewhere along the side of the flybridge area under the bottom of the arch. Does anyone have experience with that wire routing and replacing any of those wires? It cannot be easy. Many thanks in advance for your advice.