Hi...

I have just installed an aftermarket towbar and I now want to install the electrics. I had a look at the standard electics that came with the towbar and I am now awfully keen on splicing them into my S80s wiring loom.

I notice that volvo sell its own wiring harness and relay kit. However is it possible to get an aftermarket version for less?

Also, if I do this will the system not work until I get the software upgrade from volvo?

L

Yep, you have to get a software download, and the downloads for the accessories aren't available to we independent shops who pay for VADIS and WSDA. I have installed three trailer hitches on S80's, but they were installed for the purpose of bike racks so lighting wasn't an issue. I think the only reason a download is needed is to keep the bulb integrity light from staying on...I would think power (and this is an assumption) would travel through wires regardless...unless Volvo has figured out a way to break the universal laws of physics...

Hope this helps,

Chris

I don't mind if I need to pay €20 to get the software upgrade the next time I have a service but do you know whether the relays that volvo uses can be bought anywhere apart from volvo?