We have used the 7-way trailer cable extension units before for a 5th wheel hook up. Might rig up something like this for your application. Never easy to mess with the wiring. Best to purchase something that has that already done for you. ETRAILER should have different lengths of this extension unit. ETRAILER is an excellent place to look for the trailer wiring products
Converting everything to 7-way units helps with being standard everywhere. Most all of the trailer connections we have used are either 4-way or 7-way.
I realize this is not exactly what you probably will need for hooking up the toad. Just posting to give you some ideas. ETRAILER.com has all kinds of molded wiring ideas.
Roy Ken
My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS