The problem with using them with door panels with no holes is the splined shaft on your window regulator goes through that hole. And these power window conversion kits just actuate that splined shaft. I have heard of some guys being able to shim in their window regulator enough to use a door panel without the hole. On mine, I just used the caps that come with the kit and painted them to match. It wasn't a big deal to me. For only around 100 bucks for enough to do 4 windows, it was well worth it to me.

http://www.ebay.com/itm/4-Window-Roll-Up...ies&vxp=mtr