I have an 89 mkiii supra that came with a 7mgte. I am swapping with a 1jzgte 5spd. I have lengthened the wiring harness and now needs to be wired underneath of the dash. Is there an easy way to go about this? Pics would preferably help or even some links. I have had this motor for about a month now and it looks so helpless sitting there .

did you buy the clip

i have some diagrams if your interested.