I don’t know if this is a great idea but it has worked for me. When the Spyder was new to me (2015 RTS), I didn’t really want to remove a ton of Tupperware so, with the rear valance off, which is needed to plug in the show chrome connectors, I also removed the forward, easy to remove cover with the grate vents. I used a 4 foot cable tie which I frequently use to fish wires through things. From the rear, up high, is a pathway that goes all the way to the front with access at the open front panel. I used split loom to protect the wire and used automotive wire instead of the extensions provided with the kit. With the frunk open and the black cover by the diagnostic port removed, you can fish the wire from the forward panel with the mesh to the area to the top of the frunk. From there you can fish the wire behind the frunk to the battery area. I used an inline fuse at the battery so if my method was flawed, it wouldn’t fry anything. Cable tie to anything stationary everyplace you can along the path.
As an aside, since you will be routing the trailer leads and adding the plug, I chose to put some connectors up in the harness under the rear valance. I run all my additional LED lighting off the trailer leads rather than the native Spyder wiring. This way all my add ons are isolated.
Hope this isnt isn’t too confusing and helps.
