is there a way i can tell if i have a s5 dash harness in my s4 the whole interior was swaped before i bought it

i have the wierd idiot light probs where when i put the e-brake on the fuel light comes on i dont know what other symptoms would be but i just want to know because i want to convert my car to an s5 completely im thinking of dumping my idea of an re swap and just doing the tII swap but i wanted to start with a better setup (ex. tubo,turbo mani,and other things)

so i have of course searched like crazy but cant find

how to convert my car to an s5 all that is left on my car is the engine

interior and exterior are already done


so i am guessing its all going to be wireing


so let me know if i am right


1. replace s4 dash harness with s5
2. replace driverside harness with s5 unless they are the same
3. replace engine harness with s5
4. replace engine with complete long block from s5

is there anything else?

im sure the rear wiring is the same wether it be s4 or s5


but hey let me know if i am wrong

thanks

 

anyone?

 

i dunno how to tell the difference in the harnesses, but ive got a s4 dash harness if you need one