New Auto ELM327 V1 5 Interface Bluetooth OBD 2 OBDII Car Diagnostic Auto Scanner | eBay
This is the device I have it has worked great with all 5 of my android devices. I do have a jail broken iphone 4s with a dead battery. I got it from a friend I ordered a new battery and after I get it up and running I will try to get it to work. Can you link the other OBD2 device that will work with a stock iphone?