Newbie alert!! I just found this forum, have been on others for years. Stumped by my gauge dimness. I have a 06 Roush that the instrument cluster gauges are dim but radio time display and all other non Roush dash lights work perfectly and work as should when you use dial to dim and brighten. The white backing on Roush gauges seem like they don’t light at all! The red u see in photos do dim and brighten along with all other non roush gauges See photo of them at full strength. Fuses are fine, was thinking headlight rheostat but lights do dim and brighten turning knob. Anyone else have this problem?