I purchased this mount prior to buying an InReach Explorer. A Black Friday sale convinced me to upgrade to a GarminGPSMAP 66i. Much to my surprise (and relief) I found that the power mount for the 66i attaches perfectly to the jeepuniq mount. The setup looks professional and is very functional. Although not stated in the description, this unit also fits the grab bar of a Jeep JT Gladiator. My only suggestion and not really a complaint is that the instructions need clarification. It took me awhile to figure out how to secure the clamp to the grab bar. It was not written in my instructions but there is a plastic insert that will squeeze and hold the clamp tight around the bar. It made sense once I figured it out, but I can be quite slow in figuring out the obvious sometimes.