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Discussion Starter · #1 ·
Hello! So I'm trying to install a radio into my sister's 99 b5 but I'm having trouble. The previous owner hacked the old harness and now I've got to do some detective work on what goes where. I looked up some wiring diagrams and can't seem to find the 12 volt ignition wire (yellow with red stripe wire) or the battery wire (thick red with white stripe wire). There are 2 thick red with a blue stripes but I don't have any info on what they are. Any help would be great!
 

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Discussion Starter · #2 ·
Nevermind I figured it out. There were a bunch of extra wires and I used my tester to see which wires were live and which ones worked with the ignition turned on. Ignition switch wire is solid red and battery power is red with blue stripe
 
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