Dash lights.
 

I just purchased a 2007 Sky with only 34,000 miles on it. Why would I have no dash lights on my gauges? Also, if I turn the headlights to auto, I lose my radio lights. Radio lights come back on if I turn headlights off.

Check to see if the dash light dimmer switch is turned all the way down/counterclockwise/on minimum.

Dimmer switch dirty contacts?

See post 24 for inspection/cleaning guidance.

https://www.skyroadster.com/threads/...-lights.40498/
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Also check battery terminal tightness look for battery date code to determine age of the battery