Dan, glad you found the mildew problem. Your dealer sure seems to be on top of things. No problem with our roof air, but I wish it had a thermostat so it wouldn't run continually. I had a JVC radio installed,$200, which is what the dealer reimbursed us for. Sounds good, so no complaint on that. Trail-lite also replaced the heater switch,with the led. They said sometimes they use a different switch, depending on their stock. Still averaging 12 mi. per gallon, 60 mi. per hr. Hopefully these problems we are both having will diminish soon. I'd like to post positive remarks for a change.