17" apparently isn't enough just in case anyone was wondering. I got like 6" into the trunk. Also apparently the spacer rings I bought off parts express don't fit the ctx65.

 

Yeah, 17 inches is pretty small. Just kidding. I think that I used 19 feet and it was tight.

 

Doh. 17'. Yah. Its what I get for buying the cheap amp install kit. Just one more foot would have been fine. I'm debating if I get a distribution block and use it to extend the cable, or if I bite the bullet and buy more wire.

 

Get the distribution block...then you'll have room to grow.