I have a Northpoint (Cherokee) CBS1000 with burned out meter lamps. Are they mounted outside of the meters over the top? It looks like it from some videos of the rig I watched but I am not certain. If I take the knobs and front panel off does that make them accessible to replace them? Also are they the same kind of lamp that light up the channel/frequency display (PL1 through 4)? I already have some of those. I may switch to LEDs if they are not too difficult to get to.