I need help with what wires go where on the third connector on the Bose stereo! Please help me retain my steering wheel controls!

 

Try AlldataDIY. There's also a service manual available for free online. You might want to look at some of the wiring diagrams for what you need.

 

 

Please explain your situation a bit better....

Your post just makes me say... Plug it in 🤷🏽‍♂️
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yea too little info. if you are replacing or reinstalling a bose with a bose the hook ups should already be there, if you have aftermarket, that will be a diff story, and your product hook up info should be able to help you. now if you didn't keep track of your wires when you ripped everything out than you need to back track and figure it out.