I just installed Whelen TIR 3's in the grill of some Detective Jeep Cherokees. After searching for a good location, I noticed that the TIR3 is just a bit wider than the fins of the grill. I used Permatex Black Silicone Adhesive and expoyed the lights to the grill vertically. I put the black housing on the TIR 3 and presto...They look awesome. I stuck the grill in and found the perfect section of the grill that would make the lights level. As anyone ever epoxyed lights like this before? And if so did you have any problems other than removing the lights. These lights won't be removed until we sell the vehicle usually about 5 years from now so unless I have a mechanical failure, I think this will work.