QUADRASTEER! GM Parasitic Battery Drain from the FACTORY? (Part 1)

This rare beautiful GMC Sierra QUADRASTEER apparently came with a defect from the factory. According to the owner, it has always drained the battery during extended periods of sitting. In 20 YEARS it has been to countless GM dealers and other shops in efforts to solve this annoying problem! Let's dive in and use our tried and tested methods for pinpointing this elusive parasitic battery drain. The owner loves his truck, and wants it to be PERFECT!! ASTRO AI DVOM: https://www.amazon.com/dp/B07FDBW1PT?... ZEEWEII 2 CHANNEL POCKET OSCILLOSCOPE: ****$30 OFF!!*** https://www.amazon.com/dp/B0B497T6HR?... Enjoy! Ivan