i was just gonna say the same thing, if the wipers been deleted then you could use the rear wiper stalk, if you don't have heated seats you could put a button in the blank or get an oem switch, maybe another traction control switch and wire that to work the boot, there ASR and ESP depending on the car you have just get the opposite button to what you got already, i know a guy that wired an aftermarket immobiliser to a second fog light switch in his mk2
