I am replacing my factory head unit with an aftermarket that i have on order. Can someone tell me does the factory unit have a 4 pin connector for the backup camera. I want to purchase an adapter rather than cut the wiring if i can. Ebay has adapters from RCA to 4 pin for toyota but it does not specify which Toyota model it is for. I can assume they are all the same but just wondered if anyone happens to know for certain.