I just ordered a Pioneer 920 and went to Best buy to get a labor quote. I have all the parts and the steering wheel control so I will just be paying labor costs. They want $100 for the unit $60 for the steering wheel control and $5 for misc parts fee. So $165 total labor costs. I was wondering if this is reasonable for the unit to be installed. It seems like a lot because I only paid $510 for the unit itself. How is the installation to do yourself? THANKS.