Question about Routing solar cables down fridge vent

I ran mine down the side pretty much between the paneling and insulation. I would be more concerned about sizing properly. If it was that hot in that compartment I think the cheap paneling or plywood would be the real risk. Dont let them lay against any piping and leave a little slack here or there for future work if needed. Use plastic strain reliefs and plastic cable clamps to fasten everything neatly.