Mine was installed by the dealer but You can check my thread. Maby it helps. I dont know
On mine control box. I see with my control box you just connect the sensor and buzzer. and the ground and power+. And it worked
The power is connected direct to the R-light.
take care when you do this ,there is a warning on the loom which states you cannot connect anything with a greater current draw than i think is 10 mA a relay is about 150 mA.i had the same issue when i fitted a reversing camera,fortunately there is a tow bar fitted to our car and i could take the supply off the box for that as it is an electronic unit.you may have to buy a solid state relay.
Thanks all for the kind replys.
I did see the warning about the 10mA and as such I went back onto ebay and bought the relay switch specifically for the cisbo parking sensor for the princely sum of 8 pounds. Which is great as the output end has the specific connector to plug into the sensor base.
I used this with the newly gained permanent live gained by adding a Maxi Fuse in slot 2 detailed in another thread. This gives plenty of current to run the base.
One thing on my connector the yellow wire is the reverse light but it was in position 1 of the connector making it the second one down from the ground cable on the end with 2 wires.
The only problem I am having at the minute is removing the storage bin on the drivers side. I have all 3 screws removed but the thing just doesn't want to come out. I can see 3 clips at the rear will just have to caox it a little bit more.