08 tundra remote start

ok, got a weird one. Just did a Valet 562 + XK05 module in an 08 Tundra. Everything went ok, except sorting through all the tiny wires at the ign column, that was a pain. Everything seems to work good. Locks, unlocks and starts. No trouble lights or problems. Sent it out on its way. Owner called today and says the factory backup camera doesn't work, the digital rear view mirror doesn't work and his Bluetooth sounds all garbled. wth??? Any ideas?? Could I have blown a fuse somewhere probing for the correct ign and acc wires in the ign harness?? It's not coming back for a couple of days and I want to have a game plan in place of things to look at. Thanks.

disconnect the bypass and see if the problems still occur. dont just take his word for it, tell him to come in so you can take a look at it. some individuals just do this to get something else.