Help w/factory disarm & door locks

Any help greatly appreciated.

I am installing a Commando remote strta/security system on a 1998 Lexus RX 300.  Everything is hooked up except the factory disarm and the door locks.  The wiring diagram I have simply says the disarm is with the locks - no other description.  For the door locks the locator indicates it is inside the passenger side door.  I s this correct?  Do I need to remove the door panel in order to get to the disarm and door locks?

My understanding is that Lexus is simply a Toyota and that the RX300 is build on the Camrys basic frame/engine.

Again, any help or insights any of you can provide will be greatly appreciated.

I've only done a few Lexus vehicles, but many, many Toyotas.  Yes, the RX300 is a jacked up Camry.  A handful of Toyotas are using the new-style locks.  I've found ways around the system on the Avalon and Highlander, but I think you're going to have to go into one of the doors on your car.  If you want 2-stage unlocking, and your Commando unit has that feature, you can make the interface in the driver's door.

Factory disarm:  The factory alarm will disarm when the car is started with a key.  There's a blue wire with silver dots coming from the ignition switch----this is the key sense wire--- it will show a ground when the key is inserted.  Use an output from your Commando that will put out a ground while the remote start is on, and attach it here.  You don't need a relay; a direct hookup is fine.

Thanks very much, that should get me back on track.  Am I correct in assuming I can use the factory keyless entry as long as I don't mind lugging two signal devices around - one for the doors, the other for the remote start?