Gauge to Dash Methods

[Boostedleg]

So I got my Boost Gauge and single pod in but I don’t want it on the A-Pillar. But I also don’t want it above the steering wheel on the column. Id like to try and hide in under the A-pillar on the dash. My plan is to flip the Pod I received upside down and mold it to the contour of the dash in that corner. That’s no problem, little patience dremel and tracing it out will do. The part I’m stumped is how to mount the Gauge pod to the dash in that corner. I know there obvious things to make plastic stick to plastic like epoxy, glue, staples, nails, wood screws, tape, L brackets and rivets. But I want it to look clean. Anyone have any ideas? It’s a 1992 Legacy if that helps. Thanks