I have had some success with having customers move the unit itself and mount it to a different surface in the vehicle.
If that doesn't work, another possible fix that usually helps as well is regrounding the DICE unit itself.
The 3-pin cable coming out of the DICE module has one brown wire which is the ground. You can actually cut that wire and reroute it to a body ground or even to the negative battery terminal itself. You're kind of taking a chance on this though because once you modify the unit your warranty will generally be voided, if you even purchased your DICE from a vendor that offers a warranty.
Keep in mind that if you do try re-grounding the DICE, leave some space on both sides of your cut in the ground wire so that you have the option to splice it back together if you so choose.
Feel free to email me if you have any further trouble. [email protected]