SPENK07

I searched around for other threads and could only find ones about removal so Im posting up.. The steering cable on my 03 Avalanche is in desperate need of greasing after unfortunate lack of use last season. I know on my buddy's Tige 20i that there is a little grease nipple in back of the boat but I cant find mine. Has anyone greased theirs or have any clues as to where it is? Ive got the tools and grease to do it, just needing to find the dang thing. Thanks