I'm a newbie when it comes to all the new audio stuff.i just got a dual audio 2 din head unit.all of the speaker,and tweeters are factory.it works great! but a few problems.i got the user manual.I'm trying to set the clock and get into the setup menu.it says hold down DSP and wait till it blinks turn volume **** to change time...Everytime it starts blinking I turn the **** and all it does is adjust the volume and sends me back to the main menu...any ideas?THANK YOU

 

its a really crap unit to be honest however i think reseting it will help your issue out then trying again