I bought a 1975 Catalina 22 last summer and redid the exterior teak last winter. This winters project is to update the electrical system. Its been quite a few years since it had a battery hooked up to it at all. I removed the electrical panel and it was original to the boat (still had the original inspection sticker on it too!). My original plan was to use the old wires to pull through new wire but it seems the wires are fiberglassed into the hull. I've tried pulling on them and nothing moves. Any advice on electrical would be great! The boat itself hasn't had much work done on it in the past 20ish years but the hull is in excellent condition.