How to fix audit

i have an audit by mail, they want me to send in alot of supporting documents but when I spoke to a turbo tax representative we were able to figure out what was entered correctly and fixed it.  I printed my amended return but never sent it out because I was waiting for more documentation from the IRS on what to do next.  Can I just send in amended return from turbo tax or do I have to send in all the supporting documents they are requesting?