evo-one currently installed, can i add a int-sl+ to gain additional features?

Question

I have a 2001 cadillac seville sls with an evo one currently installed. The evo one does not support dual driver presets and rear window defrost while the int-sl+ does. Is it possible to add an int-sl+ using data link to gain the additional features and if yes what other wires (other than data) would i need to hook uo?

Answer 1

That has never been tested on that specific vehicle, so I do not know if it would work or how you would even configure the 2 together.