Coolerpad

I had DEI valet keyless entry 712t system installed on 2001 Toyota Corolla... I want to do the progressive door unlocking (unlock the driver's door only...pressing the unlock button an additional time will unlock the passenger doors).

Here's the info on the wires on it:

Valet 712T Primary Harness (H1)

1- Red (+)12v constant power input
2- Blue (-2)200mA second unlock output
3- blk/wh1 Input domelight supervision relay #87
4- blk/wh Output domelight supervision relay #30
5- green/blk Lock #30 Common output
6- wh/blk Lock #87 Normally closed
7- Violet/blk Lock #87 Normally open (input)
8- Blue/blk Unlock #30 Common (output)
9- Violet Unlock #87 Normally open (input)
10- White (+/-) Parking light flash output
11- Black (-)Chassis ground input
12- Brown (-)Horn honk output
13- Lt Grn/blk Factory Alarm disarm
14- White/Blue (-)200mA Ch3 validity output
15- Yellow (+)Switched ignition input(accessory
16- Orange (-)500mA Ground-when-armed Output
17- Brown/Blk Unlock #87A Normally Closed
18- Red/White (-)Output of Channel 2

Do I need an additional RELAY to wire this... must be something to do with the BLUE wire...
The number 2 Blue (-2) 200mA second unlock output.

Thanks in advance!