Use the ISVE61 to do the common ground setup on your bose, pop will go away.I purchased the following head unit for my tt:
ALPINE CDE-HD137BT bought a wiring harness as well as the amp adapter for the boss kit... I went ahead and got it installed...
It sounded great...there was only one issue..I would hear a loud pop every time i switched sources, changed tracks, hit basically any button on the unit even switching radio stations...it was kind of annoying but the quality was still decent.. anyway I got annoyed with it...so I went back to the stereo shop that I had it installed and asked them for a solution, they examined what was happening and quoted me a $150 for an amp-bypass kit..okay fine I'd bite the bullet as long as the loud pop would go away...got the car back..the pop was gone..relief...Audio CD's played beautifully (none mp3) thats all I had at the moment, but when I switched to my usb device or stream through bluetooth mp3 quality absolutely horrid. its so distorted that its at the point where I had to have the fader fade to the rear four levels (R4) to make it bareable, the bass is horrible, the highs are too high..it just sounds terrible...I am really at a loss on what to do.. I really don't to seem like an pestering customer; and complain..because 1) I don't know if its an issue with my car or its supposed to be like that..has anyone experienced this..I just want good quality again after spending nearly $400 on the system and install I am frustrated..it was better when I had the stock unit and my 6-disc changer...would like some thoughts and opinions
- I've tried different encoded mp3
192kbps-320kbps - all sound horrible..but audio cd's sound crisp and clear.