Dash Light Question

My Dash Lights worked fine, the gas light came up when i was running out of gas all that worked fine, then one day i got a new deck (replaced The Stock Deck) and hooked up some sub’s. I Took it to a local shop and now my gauge lights look a little more dim on Speedometer side and gas gauge and plus my gas light dosent work anymore. The RPM Gause is lit fully any idea’s?

Pull the HU, [deck] and see what has been done with the red/black illumination lead in the OEM radio harness, [will be orange or orange/white if radio harness adapter was used]. :corn: 94