Gauge Pods on pillar

I bought a 2 space gauage piller for my talon. It wasnt the whole pillar replacement, so I decided not to go ricey, and just glue it on. I actually cut up the pillar and put the pod piece right where it belongs. I used a Silicone sealer / glue to hold it all together with some lil braces underneath. However, the silicone isnt holding now and is falling apart. What can I use to make it look seamless like it was never cut up? Thanks

Dave