remote start, 2003 sequoia

ultrastart 1270 --> about $40-60

PM me if you're interested, I have a unit sitting on my shelf that I have not used (no trunk output) but brand new, range is about 1/4 mile without any interference.  you can go to ultrastarters.com and read about it.

I'm looking for some wiring info for a 2003 Sequoia.  I have the remote start basics, but there's a couple details I can't seem to pin down:

I'd like to control the rear window, down at least, preferably both.  I thought originally to tie into the switch on the dash with a relay, but it doesn't seem to have power when the vehicle is off.  Is there somewhere else to tie in near the front of the vehicle?  If not, does anyone know the wires and triggers I'd need to tie into in the back tailgate?

I noticed for the 2002 model you can tie into the tach and hood switch inside the cab.  Are there similar wires in the 2003 so I don't have to go through the firewall?

Also on the 2002 there's a blue/white wire below the radio to control the rear defrost.  Is there a similar wire to control the rear (and front) defrosts on the 2003?  When I did my last install I was able to open the A/C unit and wire a relay across the switch to 'press' it for me, is it possible to do the same here?

Finally, if someone could post pictures or instructions on how to remove the dash, door panels, and tailgate panel I'd appreciate it.  I'll need to open the tailgate panel to fix the broken door handle anyway...