How to protect backup camera wires underneath?

I'm installing a new backup camera on my truck, and I don't know how to protect the wiring that will be exposed to wet, road sand, etc under the truck. My main concern is that there are a few splices and thin wires involved. I'm tempted to do the following, but I'm sure there's a better way:

- Wrap wires with electrical tape
- Stick it in flexible plastic wiring tubing
- Stuff everything in plastic bags (gallon and/or trash… probably double bag at least)?
- Duct tape the bags shut to keep most of the water out
- Zip tie everything to follow existing wiring routes under the tacoma

Note that I’m not the most technically-skilled guy, so I'd be satisfied with a "good enough" solution that's easy to do. Do you think the approach above will work, or will it fail in 2 months?

 

In my opinion, I dont think they will come across as much damage as your imagining as long as they are not hanging down loosely or anything. You can zip tie them to secure them better. There are plastic tubes you can buy and are real cheap that will protect them. Same tubes that are on your wires for your headlights from the factory. Can get them at radio shack I'm sure. As long as your connections are good and secured. Use heat shrink on your splices if you can (also available at radio shack)

 

Heat shrink all the connections and run all the wire in wire loom. If you want the extra protection, wrap the wire loom entirely in electrical tape as you would a hockey stick. Zip tip it all to the frame or existing wiring and you're good to go. What are you putting in plastic bags??

 

Thanks guys. Ok, sounds like I may have been thinking overkill. I guess heat shrinking is just something I'll have to learn to do. Can't be that hard.

re: plastic bags... I have an extra wiring harness that I spliced into, and the unused portion of that (and end plug) is what I was going to stuff into a bag. It's the same Tacoma backup camera wiring harness that is usually in the tailgate. I'm taking the tailgate off, so I got another harness to make plugging in to the mirror display as easy as possible (and so that if I screw anything up, it's the extra harness and not anything that's part of a properly-functioning truck).

 

Heat shrinking is very easy. Just slide a piece over the splice after you solder it together, aim the heat gun at the heat shrink, watch it shrink up and you're done.