Do I need by pass

I was wondering if I need a by pass for my 1999 Alero when installing a remote starter. Thanks

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        | |              12V|red                 |+ |ignition harness *1        | |          STARTER|yellow              |+ |ignition harness *1        | |        IGNITION|pink               |+ |ignition harness *1        | | SECOND IGNITION|dk. green           |+ |ignition harness *1        | |        ACCESSORY|orange              |+ |ignition harness *1        | | SECOND ACCESSORY|brown               |+ |ignition harness *1        | |       POWER LOCK|white *2            |- |drivers kick in black plug | |     POWER UNLOCK|same wire           |   |                            | | PARKING LIGHTS +|brown               |   |passenger kick or column    | | PARKING LIGHTS -|                    |   |                            | |     DOOR TRIGGER|*4                  |- |*4                          | | TRUNK/HATCH PIN|ORANGE / black        |- |trunk light                 | |TRNK/HTCH RELEASE|BLACK/ white        |+ |drivers kick panel          | |       TACHOMETER|PURPLE / white        |   |ignition coil or ECM *5     | |       BRAKE WIRE|lt. blue            |+ |at the switch               | Notes: NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555t or 555L. *1 Remove the radio, without unplugging it, to access the ignition harness. *2 Lock requires a negative trigger, and unlock requires a negative trigger through a 1,500 ohm resistor. Must use relays. Must close doors to lock with a single pulse. *3 Requires a high current ground. Use a relay. *4 The lt. GREEN/ black is located in the drivers kick and catches only the drivers door. The lt. blue is located in the harness coming from the drivers running board going under the drivers seat and it catches all other doors. Use both door trigger wires and diode isolate each. On the 2 door the lt.blue is in the passenger kick.    *5 The ECM is located under the left side of the dash to the left of the column.Houston,TX

"The two most common elements in the universe are H+ and stupidity" (Ellison).

yes.....    555L or GMBPKevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979