hey, keri, good to see you. ride. >> thanks, it's my baby. >> well, now that you're here, maybe you can help me show everybody how simple and powerful carmd is. >> when i first saw carmd, i had no idea there's a 16-pin carmd connector inside my vehicle. everyone can use it right here from the front seat of their car. >> chris: this is the same place your mechanic goes to diagnose your vehicle. they are usually in the area near the steering wheel. if you don't know where yours is in your car, don't worry. carmd will show you. >> chris, most people don't know much about how a car works. how can we possibly figure out what's wrong with the engine? >> well, with carmd, it's really easy. you don't even have to start the engine. you just plug it in like this, with your car off. wait for the two beeps. [beep beep] now, turn the car to the on position and now you'll hear four beeps. [beeping] that means that carmd has already checked out your vehicle and then you can just disconnect it. >> now what? >> well, with carmd'