I own an Acura Legend '91 and the wire harness on the passenger side was torn apart. I think it damaged the wire towards the turning signal.
I'm not a big fan of patching wires on automobiles. The problem is the weather. Corrosion will just tear into any repair you do, unless you do a really fancy one. Like those barrel crimp connectors - utter and absolute junk. They make a variation on those which have heat-shrink ends on them, but not just heat-shrink, they actually release a gooey liquid which melts into the splice to keep out moisture. They're expensive though, $1 each or so. Last time I bought a factory harness repair kit, it came with those. Another option is to tin and solder the wire ends, and then shrink wrap it and then wrap with electrical tape. But working in close quarters, that is a major pain, great way to burn other wires, burn carpet, burn yourself. Be sure to re-wrap the harness so wires are not flailing around, that will break them.
Search out a 91 Acura in the junkyard, and pull that harness. If the plug part is in decent shape, its fairly simple to patch the wires and use shrink wrap to seal out the repairs. If you do it yourself, you can probably do it for about 5-10 bucks!
