How to adjust equalizer on hidden menu HU-801 HU-803 radios
The Volvo HU-601, HU-603, HU-613, HU-801, HU-803, HU-813, HU-850 radios that are found on Volvo S60 (2000 to 2010), S80 (1998 to 2006), V70 (2000 to 2007) and XC70 (2000 to 2007) Audio System have an hidden menu where you can manually adjust the equalizer settings for both front and rear speakers. Proceed as follows: […]