Clarion repairs radios for an $80 flat rate; 90 day warranty.  Turnaround is two to four weeks.  If you go through the dealer, you get a 1 year warranty.  All the dealer does is package up the radio and send it out to Clarion. Different dealers put different markups on this, but $125 seems typical.  

1-800-366-4547 (Clarion Customer Support) 1-800-347-8667 (Clarion Service)

Send it to :
Clarion Repairs
661 W. Redondo Beach Blvd.
Gardena CA 90247

Make check out to "Clarion"
Add a clear written description of the problem