Quote Originally Posted by Craig_328 View Post
I'll order the amp soon. First question is where is the install write-up?

Second- how do I get my volume to stay at a true 30? It seems to go to 20 and stay there at high speed. I read somewhere on here someone else experienced this same issue
Here is JimmyTee's install thread sticky and some pictures of the shop manual's OEM preamp wire colors to get you started.

My adventures in F6B Audio Upgrade

Other threads indicate the 20/30 is related to AVC being turned on. You need to turn off the AVC functionality.