I have a 2013 WRX with the stock Clarion sourced radio. I had this unit replaced with a single DIN Pioneer DEH-P8400BH. The sound quality difference is amazing. I had previously replaced the stock door speakers with Infinity speakers. The sound quality was better, but still not good. Subaru needs to put a quality radio in their car from the factory. For those who like their music, replace the stock radio. You won't be sorry.