1998 Renault Scenic Immobliser

I have a R Reg Renault Scenic, water came through the arial and damaged the I/R so the key fob wont work. I have gotten the 4 digit code from Renault and we can use the car but I want to make the bypass permanent as I dont want to have to punch in the code every time I drive the car. Can anyone tell me how to make the bypass permanent. Thanks