Alright guys, so I'm finally ready to put some effort into this, especially knowing that
@redjet completed it so I know it's possible.
Here's some info and where I could use some help:
1) I have a 2002 LC with Nav. I'm picking up 3-dial controls today from a '99 (as far as I know, no compatibility issues here).
2) Deo has a '98 harness for sale that looks good that I'm going to try and swap in. I do NOT plan on cutting the ends like
@redjet , simply dropping the dash and swapping the harness.
3) The '98 does NOT have rear AC. My 2002 does. My biggest worry is that I will lose rear AC functionality.
@RobRed has pointed out to me that the button was simply blocked off in the '98, leaving me to believe that the wiring existed, regardless of the missing rear AC components.
4)
@DMG1 has be EXTREMELY kind and got me access to his ALLDATA account, and I was able to pull the wiring diagrams from the '98 and for the '02.
5) HERE is where I need help. I don't understand wiring diagrams.. at all. My hope is that someone here can take a look at the '98 and '02 diagrams and they can tell me if there is a difference and if I will lose functionality.
If everything looks good, I'll hopefully do the swap soon, and I'll write a tutorial for others to follow and give the info for sourcing parts. If it doesn't look good, I'll simply have to put this off a bit longer, find a '99-'02 harness, and go from there. I can get a '99 harness right now but it's going to cost me more than I'm willing to spend at the moment. In addition, I'd like to find out if the '98 works as that gives everyone greater potential to find a working harness.
So, you can find the diagrams I was able to source, here:
Index of /landcruiser/wiring
The diagrams are separated into their respective folder by year.
For filenames:
98 = 1998
02 = 2002
CF = Condenser Fan
FAC = Front Air Conditioning
RAC = Rear Air Conditioning
wo = without
Strangely enough, there are diagrams for rear AC and without rear AC for both '98 and '02, even though I don't think either year had an option.
The diagram designs are slightly different so I can't just lay them over eachother in Photoshop. However, if it's helpful, I Photoshop each diagram side by side to compare years. If anyone here is willing to lend me a hand and that helps them, I'll gladly do it.
Alright, wordy post is about over. We're finally making some headway and hopefully soon I'll be away from the POS head unit, as will others.