These knobs really add style to the console controls in the S197. With some patience and basic hand tools the install is a couple of hours. The dial dots light up using the factory light system just fine and look good. The instructions from SHR are top notch, but I don't recommend the quicker "pull off the old one method" ... much more reliable and less likely to break something to actually take the control panel apart and install that way. Either way you are likely to ruin the factory knobs ... but hey, you wanted to change them anyway ... that's why you bought this kit!