Salam
This may be long, but I think it will help you.
Zack, you cited verse 10:94. This verse, when read in context, isn't asking for people to look for sources outside the Quran and take them for religious authority. It's simply asking people to talk to the receivers of the previous scriptures
in order to recognize the Quran's authenticity. And it's not saying that those people have religious authority; it's just instructing people to engage in discussion and find the truth of the Quran.
Many articles exist online dedicated to explaining the "violent" verses of the Quran. These usually cite hadiths to explain the verses in "context." However, there's a certain method to understanding the Quran, and it doesn't involve hadiths. The Quran itself provides the context for all its verses, if you look closely.
"Then, you are those [same ones who are] killing one another and evicting a party of your people from their homes, cooperating against them in sin and aggression. And if they come to you as captives, you ransom them, although their eviction was forbidden to you.
So do you believe in part of the Scripture and disbelieve in part? Then what is the recompense for those who do that among you except disgrace in worldly life; and on the Day of Resurrection they will be sent back to the severest of punishment. And Allah is not unaware of what you do." -2:85
"He is the One who sent down to you the Book, from which there are lawgiving revelations; they are the essence of the Book; and others which are of a similitude. As for those who have a disease in their hearts, they will follow that which is of a similitude, seeking to confuse, and seeking to derive an interpretation. But none know its interpretation except God, and those who are well founded in knowledge; they say: "
We believe in it, all is from our Lord." And none will remember except those who possess intelligence." -3:7
There are a few ways to accurately understand the Quran and the "killing verses" without historical context or hadiths. Please see Quran 2:189-193. These verses basically give the rules for warfare. All other Quranic verses regarding warfare should be understood in light of these verses. Quran 1:191-192 say that believers should fight against those who fight them and fight in the cause of the oppressed. Therefore, if another verse instructs believers to kill those who don't agree with them, it's only referring to the people who attacked the believers first.To understand any topic mentioned in the Quran, put all verses on the topic together. Then figure out what the implicit verses mean in light of the explicit ones. Many verses may seem contradictory at first, but if you take them in light of the clear verses, they make more sense. This is how most Quran-centrists make sense of the text.
For understanding the Quran without external sources, please see:
http://www.free-minds.org/quran/PM/A01For understanding the "violent" verses with the Quran itself, please see:
http://quransmessage.com/articles/a%20message%20of%20peace%20or%20to%20live%20by%20the%20sword%20FM3.htmhttp://quransmessage.com/articles/surah%20tauba%20FM3.htm