99 Lexus RX 300

Hi,

Can anyone lend a helping hand in an installation of a remote start for a 99 Lexus RX 300.  Just by reading other people's comments on 2002 RX 300... I know I need a part DEI 555U for the transponder bypass.... Can anyone help me out with any wire color coding. 

Also, provide me with some input on disarming the factory system, everytime the remote starter engages.

Thanks

You don't need the 555U , there is a keyless bypass module for the 99 RX300 that we sell. Here is the wiring diagram that you need:

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |
|              12V|WHITE/ blue          |+  |ignition harness            |
|          STARTER|BLACK/ white         |+  |ignition harness            |
|         IGNITION|BLACK / YELLOW        |+  |ignition harness            |
|  SECOND IGNITION|black               |+  |ignition harness            |
|        ACCESSORY|pink                |+  |ignition harness            |
|       POWER LOCK|see direct fax      |   |                            |
|     POWER UNLOCK|document # 1070     |   |                            |
| PARKING LIGHTS +|green               |   |drivers kick panel *1       |
| PARKING LIGHTS -|GREEN/ red           |   |steering column             |
|       HEADLIGHTS|RED / blue            |-  |steering column             |
|     DOOR TRIGGER|RED / white           |-  |steering column *2          |
| DOME SUPERVISION|same as doors       |   |                            |
|  TRUNK/HATCH PIN|WHITE/ red           |-  |drivers kick *3             |
|         HOOD PIN|RED / blue            |-  |*4                          |
|  FCTRY ALARM ARM|arms with lock      |   |                            |
|FCTRY ALRM DISARM|disarms with unlock |   |                            |
| DISARM NO UNLOCK|blue/silver dots *7 |-  |steering column             |
|       TACHOMETER|orange              |   |right of the fuse box *5    |
|      SPEED SENSE|violet/white        |   |*6                          |
|       BRAKE WIRE|GREEN / WHITE         |+  |at switch                   |
|     HORN TRIGGER|WHITE/ red           |-  |steering column             |
|           WIPERS|blue/blk - blue/red |+  |steering column             |
|  LF WINDOW UP/DN|red   -   green     |A  |in door at motor            |
|  RF WINDOW UP/DN|red   -   green     |A  |in door at motor            |
|  LR WINDOW UP/DN|red   -   green     |A  |in door at motor            |
|  RR WINDOW UP/DN|red   -   green     |A  |in door at motor            |
| SUN RF OPN/CLOSE|not recommended     |   |                            |
|   SUN ROOF LIMIT|not recommended     |   |                            |
|        RADIO 12V|WHITE/ blue          |+  |at radio                    |
|     RADIO GROUND|brown               |-  |at radio                    |
|     RADIO SWITCH|gray/red            |+  |at radio                    |
| RADIO ILLUMINATE|                    |   |                            |
|    POWER ANTENNA|black               |+  |at radio                    |
|       LF SPEAKER|pink   -   purple   |   |at speaker or amp *8        |
|       RF SPEAKER|lt.green   -   blue |   |at speaker or amp *8        |
|       LR SPEAKER|black   -   yellow  |   |at speaker or amp *8        |
|       RR SPEAKER|red   -   white     |   |at speaker or amp *8        |

Notes:
NOTE:  This vehicle has an immobilizer system that needs to be bypassed when adding remote start.  Use PKT bypass module *1  Located in a gray 15 pin plug.  *2  This wire goes to the key cylinder illumination ring and reads the delay.   *3  Located in a 20-pin plug, low in the kick panel.  Test only with a digital multi-meter as some of the multiplex wires in the car are WHITE/ red.  *4  In the engine compartment, under the relay box on the drivers side in a gray 17-pin plug, pin #1  *5  In a 10-pin plug.  *6  Coming from the cluster to the cruise control computer, it is located just above the drivers main fuse/relay box.  *7 This is the ignition key sense wire. Using the status output wire from the remote start to ground this wire will disarm the alarm without unlocking the doors.  *8 The amplifier is under the rear seat.