Damn Papa, there's a whole lotta sexy going on in there. Even your wire management is OCD clean. Did you measure between zip ties?
Should be somewhere between 4-6 inches. I can't take much of the credit though, as for this go round I had JT take care of the whole install vs. my Civic where I did most of it and got some help for the major fab work.
Although, I guess after this little ordeal...
I had to redo quite a bit of the zip ties because it was run alongside some of the window track wiring as the shop that replaced the glass cut a lot of the zip ties off (and didn't bother redoing it). Guess that might have been for the better to maintain the OCD theme (previous pics I posted were after the glass was replaced).
I guess my main takeaway and caution is if you guys decide to use the back wall for amps and such, be sure that if you ever are in a situation where you have to get the back glass repaired it becomes a scary proposition and picking your shop is even more critical.