Josh Posted June 2, 2009 Share Posted June 2, 2009 Hello! I was trying to install a new radio in my 88 today and I can't find the 12v constant. I've read that the wire should be either pink or red/white. I have neither of those in there. I have identified all the wires except one. It is a red/brown wire. I can't find anything about a red/brown anywhere online. I have searched here and naxja. The previous owner chopped the OE dash harness so I can't use wiring harness :fs1: Any help would be great! Thanks, everyone! Link to comment Share on other sites More sharing options...
Josh Posted June 2, 2009 Author Share Posted June 2, 2009 OH! My question is, does anyone know what the red/brown wires is? Link to comment Share on other sites More sharing options...
Pete M Posted June 2, 2009 Share Posted June 2, 2009 Not sure if it helps since the letters are so darn small, but I have this from years ago when my scanner still worked: No red/brown that I can see. Link to comment Share on other sites More sharing options...
mfpdm Posted June 2, 2009 Share Posted June 2, 2009 Here's a useful link. http://www.the12volt.com/installbay/ste ... /1219.html Your dash harness may have been changed out so you might want to check other years on that site to find your match. :cheers: Link to comment Share on other sites More sharing options...
HOrnbrod Posted June 2, 2009 Share Posted June 2, 2009 RED/BRN on my 91 is LF Speaker Negative (LF-) . Battery Constant is PNK. But this may be useless on your 88. Link to comment Share on other sites More sharing options...
Josh Posted June 2, 2009 Author Share Posted June 2, 2009 Interesting. I do have the LF- though. I don't see any red/brown on that diagram either. I checked just about everything on 12volt and all the red/brown are speaker wires. I couldn't have two of the same wires, right? grr. I think I'm gonna test it tomorrow. I'll let you guys know what happens. Thanks for the replies! Link to comment Share on other sites More sharing options...
JBender Posted June 2, 2009 Share Posted June 2, 2009 Do you own a multimeter? It'd just take a minute to test all the wires in question to find your constant 12v wire. A cheap multimeter can be had for less than $20 and will be invaluable for basic electric troubleshooting. You can also get a 12v test light for a few dollars if you don't want to take the time to learn the multimeter (but it's really simple, honest). Link to comment Share on other sites More sharing options...
redneck23ms Posted June 3, 2009 Share Posted June 3, 2009 the constant on my 87 is a red/brown wire Link to comment Share on other sites More sharing options...
fiatslug87 Posted June 3, 2009 Share Posted June 3, 2009 BLHTAZ kindly posted the '88 Electrical Manual http://www.comancheclub.com/forums/viewtopic.php?f=9&t=12734&hilit=electrical+manual Link to comment Share on other sites More sharing options...
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