Howdy. I'm new to the the Forum and hoping this will be a good resource. I've been a member of other forums related to vehicles I've owned and have found them to a wealth of knowledge. I own a 1999 Tahoe LT 4dr 2-wheel drive. I inherited it from my FIL about 3 years ago. It currently has about 45,000 miles on it. (Yes, you read that correctly 45K.) I'm looking to upgrade some of the "technology" on my Tahoe. I want to replace the audio system with something that has a video screen, add back-up sensors, and a back-up camera. I'd be interested in hearing from anyone that has done any of these "upgrades" with any recommendations that you have or being directed to existing threads on this fourm. I'm open to any suggestions.