I currently have a stock Volvo 7 pin trailer wiring plug(useless to me at this point) on my 2001 V70 2.4T. I'd like to add a standard generic 4 pin connector, but retain the 7 pin as well. Anyone out there know where I can get a wiring diagram for the 7 pin plug? I'd like to splice the 4 pin into 7 pin harness and be able to use whichever one I need at the time.

A while back I found a diagram on the web for the 7 pin on a XC90, but didn't save it and now I can't find it.

Thanks for your help,

Sean

 

You may choose to log onto Amazon dot com; search for the Pico 6598PT 7 pin to 4 pin adapter. Price is $7.99 + shipping.
etrailer dot com will give you wiring diagrams.

Good luck