I bought everything on Amazon:@Elo Nice looking harness! I proposed the exact same solution a couple of years ago, but I believe you are the first to make it a reality!
I just noticed the plastic wire loom is split on my 2018 RTL-E, so my back-up camera days are numbered. You'll notice the additional Pop-N-Lock power tailgate lock cable running parallel to the OEM tailgate cable. If I do take mine to the dealership, I'll cut the zip ties strapping the P-N-L...www.ridgelineownersclub.com
Please do list your sources for the parts. My wire harness looks as if it could fail any day now. Even though I have an extended warranty on my Ridgeline and I'm certain the dealer will replace mine for free, I'd much rather upgrade the wire myself and avoid the hassle of taking the truck to the dealership and waiting on parts.
The wire is 20 gauge tinned silicone:
BNTECHGO 20 Gauge Silicone Wire Kit 10 Color Each 10 ft Flexible 20 AWG Stranded Tinned Copper Wire https://www.amazon.com/dp/B01LZ4CGX...t_i_EGMBP74XJCYDCFHT3M1Q?_encoding=UTF8&psc=1
The cover is a PTE branded mesh:
25ft - 1/4 inch PET Expandable Braided Sleeving – Black – Alex Tech Braided Cable Sleeve https://www.amazon.com/dp/B071JH14WZ/ref=cm_sw_r_apan_glt_i_QAADK5QW9E60GA5EX7YM?psc=1
The connector is a 6 pin weather proof connector ( a bit bigger then I was expecting lol) if you can find one I would go smaller:
Keadic 150 Pcs Waterproof Auto Electrical Wire Connector Terminals Plug Assorted Kit 11 Kits 1/2/3/4/6 Pin Way Male Female Socket Spark Plug Connector for Motorcycle Scooter Truck Boats https://www.amazon.com/dp/B095KD75R...t_i_S3CBZ88YSD8DVY6VP1KX?_encoding=UTF8&psc=1
And just a bit of heat shrink to keep things nice and clean.
The connector I put on the end will end up under the fender, I will be cutting the factory harness and adding in the female end of the connector to the factory harness, and the bare wire end will be soldered and heat shrinked to the factory connector inside the tailgate.
I will post pictures once I have time and warmer weather to complete it lol.