If I'm in front of the car, I have to be like 5 feet away. From the rear of the car or the side, maybe 15 feet. Sometimes I have to be next to the damn thing. This is one of those things I wanted to change and now that you mention it I think I will. I know that with after market alarms and remote garage doors you can add extra wire to the one that's their and it DOES increase the range. I wonder if we can do something like that to the box in the trunk. Just in case you didn't know, that's where the box that receives the signal is. I'll post my results tomorrow after I do it.