There are a few ways to remove ink from car upholstery. One way is to use a vacuum cleaner with the hose attachment. Another way is to use a bucket and suction cup. The suction cup will work better if the ink is on the bottom of the bucket. The bucket can be filled with water and then placed over the ink spot. The bucket should be held at an angle so that the water droplets fall on top of the ink spot and spread out evenly.