I have a few back up alarm speaker that I don't need anymore. Easy installation via the power supply of the reversing light. The speaker contains 4 sounds, which sound depending on the connection. Sounds: (please be careful, the car is backing up) And here in action: https://www.dropbox.com/s/12dppatywsomzxz/VID-20200628-WA0002.mp4?dl=0 £45 incl. Postage to GB
Reply your message mate. Still got some left guys! Time to annoy your neighbor with something other than the exhaust note.