<< I asked Best Buy and they said they would charge an extra $30 for the wiring harness. >>
Wow! What a rip-off. At Circuit City and even my local Best Buy, the wiring harnesses are only $15.00 - $15.99. Radio Shack also sells 'em for about $6.00 or $7.00, but the selection isn't always so good at Radio Shack.
I think you'll do fine in your installation of the head unit that you've ordered on-line. The installation should be pretty straight-forward. I've done about ten head unit installs over the years and my last one was pretty perfected. Hopefully, you have access to a soldering iron for soldering the connections between your head unit and the wiring harness adapter. This will allow you to make some *perfect* connections. Also, if you are going to be soldering the connections together, you might want to look into some shrink tubes. The shrink tubes are sold in the electrical section of your local Sears Hardware, Lowe
's or Home Depot stores. Basically, the shrink tubes act as insulation and protect your soldered joints and exposed wires so they can't short out. The installation should proceed as follows:
1) Cut the shrink tube down into 1.5" lengths (each tube is about 4" long. about 8 tubes are in each pack and the price is about $1.50 for the pack).
2) Put the shrink tube over the wire and move it out of the way from where you'll be soldering. Initially, the shrink tubes are loose, but they will shrink down 50% - more on that later.
3) Connect your wires together - they should be color coded on both the head unit side and on your new wiring harness.
4) Heat the exposed wire area with the soldering iron to get it hot, then feed some solder onto the wires so it melts and holds the connection together.
5) Repeat adding a heat tube to each connection, connect the wires and solder them together as indicated.
6) Once all of your connections are soldered, locate a BIC lighter or some matches.
7) Slide the shrink tubing pieces over each exposed connection that you recently soldered.
8) With the lighter or matches, heat up the shrink tube until it shrinks over your connections.
9) Perform the "shrinking" process on each of your connections.
10) Your connections will look very *professional* and much better than the stupid wire clips that Best Buy would have used during the installation.
Even if you don't own a soldering iron, Radio Shack sells them for about $8.00. Get a 40 watt iron and a small roll of solder - about $4.50. Then, pick up some shrink tubes as instructed and you're good to go.
I'm sure you'll be quite proud of your installation once you have completed it. It's not too hard to at least as good as Best Buy on an installation and taking your time will perfect the installation to the point it's better than something BB could even do.
Enjoy!!