My 1999 Accord 2.0 ES reads the external temp as somewhat higher than it actually is, does anyone know where the sensor is located, it may have slipped and be resting near a heat source? Also, my Air Con snuffles a bit, i've just bought it about 10 days ago and it may have been lying for a while, it does seem to be slightly better than it was when i picked it up, any tips out there? TIA Ed