I have swapped my recently purchased F20C into my corolla and am in the process ofmaking a wiring harness and still fitting it still so much to do anywho I am married and have two kids so buying standalone is currently NOT and option stock unit is the way to go for me but here is my issue I got the motor for a REALLY good price but as a consequence I have had to buy trans, alt, starter, and ecu I do not have a parts car and buying all the immobiliser stuff would get expensive I have a friend at honda and access to alldata and I am certified Lexus tech Honda ewd's are a bit different than Lexus ewd's but if I read it right then it looks like only one things needs to be bypassed I wont say what on here although some may have mentioned it I wont be one of them but I would like to talk to someone who is willing to discuss this with me I will offer my info first and it can be confirmed or denied I think this is gonna be the most difficult primarily due to lack of information (for good reason) email is good but a phone call is good too I will look for the diagram I had but if not I will print one off of alldata again so I can look at it and reference it for email or phone calls fitment is getting fun because the route I am taking is custom crossmember since I have 2 exhaust is gonna be fun but anyways yeah wiring and ecu stuff is what I am working on now any help would be appreciated as it will save me time and effort, but if not I am sure I may be able to figure it out thanks in advance