used a test light to check my fuses and fuses #20 (radio (start)) and #21 (star

What is your question?

used a test light to check my fuses and fuses #20 (radio (start)) and #21 (starter relay) are "bad". swapped the fuses out but still no power to them.

What makes this problem better or worse?

Na

How long has your 2005 Ford Mustang had this problem?

Week