I'll tell you what I tell my boss...I would never take a job that someone else wired, because once you touch those wires they become "your wires", and they become your responsibility. I would tell them that the wires are not suitable for the application they want, and if they want them used then they would have to findo somone else to do the job. My boss never listens to me and always takes over jobs, and it ALWAYS gets us in trouble. We did a camera job that he bid pretty low because all the wires were where they had to be and we got screwed because what we didn't know was that the dipshit that wired it made 3 different locations where the wires had splice points. It took us over 6 man hours to find the last splice point. Taking over other peoples work is never good. Especially if an electrician ran the audio wires. They are great at what they do, but they don't care about good quality audio wiring.