Going to do an install in a few weeks and will be using Ultras step by step instructions. This will be going in a ultra classic but instructions are for a street glide. Can I assume everything for these two bikes are the same once I get in there ? Just doing an amp and speakers on stock head unit

 

He has instructions posted for an 09 Ultra and a 2012 Limited. Both with stock head units.

 

This bike is a 2013 electra glide. Thinking all the wiring relating to audio system should be the same form street glide to electra glide ?

 

Unless it's a CVO, everything is identical.