Blown fuse
It is possible there is a short circuit on your brake light circuit which is pulling the voltage down causing the gauges to go haywire.
Having the radio in a trick go out while driving can many of things. The most common thing that causes this would be lose wiring.
Gauges are generally tuned to tension on wires, if they gets tweaked the gauges can easily become faulty.
A bad ground wire will cause your instrument panel gauges to bounce up and down. The ground wire can be loose or it can be corroded.
The most likely reasons are the volume is turned down or the radio is not tuned to a station.
Check all of the fuses.
low coolant or sticking thermostat
first put your e-brake on , then tilt your steering wheel all the way down, then turn key one click then move gear handle all the down also, remove the plastic trim around the radio and gauges , it's one big unit , it has clips just pull , then radio has 3 - 8mm screws
Radio stations usually only play a small amount of music genres. If you can find a radio station which plays a lot of rock music, they will probably play System of a down as much as rock-based music channels would.
the two sensors on a transmission communicate with the computer to the engine and tells the transmission when to shift up or down....
The down stream O2 sensors on a OBD II vehicle would detect a problem.
Resistance buildup in the battery cables. Mine did just that (dash lights flickering, dial gauges jumping up and down, etc.) and once I replaced both battery cables, the problem disappeared. This happened 4-5 months ago.