I am new to this forum. I am actually looking for some help. I have an Beltronics RX75. I lost my front laser detector when I hit a deer. I purchased a Shifter ZR4 to give me some front protection. I then was reading the ZR4 can be used injunction with my RX75. Can someone explain how this is possible or give me a wiring diagram? I know they sell them together. I also had another individual tell me they are not compatible together. Is this true?