I just installed the boom audio front and rear speakers on my 2011 ultra limited and although I have a little better sound for music, my road tech zumo 660 is not as loud as it was when using stock speakers. It bothers me some because I can miss gps voice commands because the volume is too low. I turn the volume up to near max but mp3 music jumps extremely loud in volume after voice prompts. Is there a hd download to even the volume out?
thanks

 

Go to the mixer in the 660 and turn down the MEDIA, and turn up the NAVIGATION.

 

that will fix the mp3 problem but why is the volume less with the boom audio speakers?

 

It's not on mine. I have my nav set to 40% and run through the Navigation Interface Module. I don't like that bitch scaring the crap out of me on a long run.

 

It could be that over the winter, I removed the cat and put some Rush pipes with 1.75" baffle.The extra loudness of the exhaust could makes it harder to hear the voice prompts. Today was the first time that I tried the gps since exhaust mod. Before I had no problem hearing the gps at around 40% -50% volume.