I'll be getting my LM 1 soon (thanks IRA) and was just wondering if there's a preferred place to get the 5V feed for the O2 sensor? If I've understood correctly, you want there to be power to the sensor when the key is in the 'on' position in order to heat up the 02 before starting the car. This will help the 02 have a longer lifespan. Suggestions would be appreciated.