Weak battery or starter motor shorted out internally.
I would check the headlamp dimmer ; it is possibly fried.
Yes.
check the wiring connections at the battery and the starter. Both places can give starting problems. The dash lights could be a separate problem. Check the fuses for the lights.
Yes, it could.
Bad dash light, or dimmer fuse. Or a bad dimmer switch itself
Bab bulbs? (they are double filamented) Bad dimmer switch? Bad low-beam relay?
Check fuse for parking lights--should be same circuit could be burnt out bulbs could be bad switch could be dimmer rheostat
Check fuse for parking/tail dash lights Could be an open in dimmer rheostat
the dimmer control wire to the stereo lights is shorting out to fix need to take radio out and look real close at all the wires
decreasing the voltage and increasing the ohms
decreasing the voltage and increasing the ohms
could be bad wiring