Matt rav4

Hi just wondering if any one has instructions to wire up the harness supplied with a tow bar for a 2008 rav4 I brought the tow bar and wiring from a wreckers but two of the connectors are missing that join under the glove box to theJ/b module. I was hoping I could splice into the two wires but don't know where they go!!!!! The wreckers are not too helpful and are 300 km away. Could anyone help? If i could get some photos of where the wires go would be great. can anyone help?