Radio uses 2 fuses. Check All Fuses. Many OE Radios are "Dead" because 1 bad solder joint, etc, & part(s) to whole thing don't work.
Example: My radio shows the clock when car is On but nothing else work, can't even set the clock. My "spare" radios are Mostly Dead in various ways & not worth time/money for Miracle Max.
Turn Lights On won't Blink can be several problem & maybe 1 or more @ same time.
Could be just bad flasher under dash above your legs. If replace, Do Not use the "clip" on plastic flashers.
⚠️ Warning: new flashers are often "electronic" & often works w/ other problems.
So still need to check bulbs &/or wiring...
See
https://web.archive.org/web...rocave/sneakpath.htm lightbulb & maybe other pages.
Read my post in
https://www.fiero.nl/forum/Forum2/HTML/147359.html too.
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave