Ok, My friends (twins) are interested in buying my AVC-R since they are installing their turbo kit on their IS300. They don't have a boost gauge, and the boost controller has a readout for boost that you can pull up on the screen. The problem is, that the controller has to be wired into the harness of the car.

They want to borrow it so that they can test of the boost reading and such. but is this going to be possible without the AVC-R wired into the harness? If anyone could give me a clear answer, this would be apreciated greatly.