Yes it was intimidating for about 2 hours then i just started cutting and splicing lol. One side of the nnbs seat belts actually bolts to the side of the seat. The other end that goes to the pillar is going to be the tricky part but ill figure out a way to make it look factory. Also actually no two toning of the interior. Im going all black. Black carpet, headliner. Smoothing all plastics and painting them black. I already have my dark door panels installed. Im about to order the carpet this week and all my plastics are already sanded and primered. Just waiting to shoot some color and clear. Gonna look factory clean when im done.