I fitted my parking sensors on saturday, very handy!
i got the sensors from www.parkingsensors.co.uk and i got a single by-pass relay from www.parking-sensors.co.uk the kit i got was the dolphin audio kit in silver which cost £49.99 and the relay cost £10 both of these included the dreaded VAT and the postage i ordered them both late on sunday night and they both arrived on the tuesday.
i was worried about fitting the speaker in the first aid comartment incase i couldnt hear it but its really quite loud even with the radio on.
Highly recomended if your looking for parking sensors for your car so simple to fit aswell
for the relay i took the permenant live from the boot interior light and there was a earth bolt just below the rear light