Anyone recognizes this? Installed Daymaker headlight on 2007 Street Bob. Works great. But ... turn signals do not work anymore, no backlight, horn does not respond. When I start speedo is gone as well?

 

HD daymaker, or clone?

Also, when working on electronics, did you have power disconnected (e.g. pull master fuse)?

Guessing you need to check fuses first to see if they blew...it's a start.

 

Clone.
Disconnected battery before I started. Reconnected when I was done
Will check fuses, did not do so yet as speedo is back to life when shut off engine and hazard lights flash when alarm engages.

 

Disconnect the "Daymaker" and see if the problem persists. If it does, check all the fuses, and all connections in area around the headlight.

 

Yep, will go back to original and then do the installation from the beginning. Update will follow.

 

Checked fuses first, found a broken one. Before replacing double checked wiring around headlight and found issue. Piece of isolation missing on one of the connectors. Taped it, replaced fuse and everything works as designed.