I'm trying to install the amp on my 2012 Street Glide with the standard radio. Do I need the radio wire harness - part no. 69200106.

 

I think I might have figured it out. This is my six-way Deutsch audio housing and since it isn't plugged into anything, then according to the instructions, I need the wire harness 69200106.

If the black six-way housing [6B] is NOT connected to a harness, install a radio wire harness (Part No. 69200106, purchased separately) as follows:...)

Also I noticed on the six-way that there are two free open spots for wires. I'm assuming that's where I put the two wires from the amp wire harness. Also looking at the two free wires and the plug that suppose to go into the six-way, one wire is yellow with a brown strip and the other is yellow with an orange strip. I'm assuming I just need to make sure they match up.

 

When I installed mine I had to purchase the harness for the ultra before the amp would correctly connect. You then have the wires for the rear speakers if you ever need them

Good luck