Originally Posted by Grimoire
I'm pretty darn sure it would work for an '03. The OBDII protocol for Ford's OBDII port is PWN, and I can't imagine them changing it in 03'
I ordered the $55 version and had to spend about $25 to purchase additional electronic parts to solder onto the board and a project box to put it in. Also, I'm a little upset the OBDII connector did not come with the hood to cover the the wires. If I were to do it again, I'd just but the assembled product for $96