2007 camry, 2 starter wires?

You can use the 555u with the valet key. Hooking up the second starter wire is cake..many toyos have this.

The RS unit you are installing should have an output for this...but it will be a low current negative. Use a relay...30 and 86 to constant fused...85 to 2nd start - output....87 to the 2nd start wire of vehicle (should be a smaller ga.)

If your system has no - 2nd start output (read the manual carefully) then do it this way...30 to constant 12v+ fused, 85 to ground....86 tapped off the main starter wire, 87 to 2nd start wire.

87a is not used in either case. It is funny but on another thread in this forum we have been disccusing for weeks why toyo (and some other vehicles) require a 2nd starter wire. as of yet a solid answer has not been given. Perhaps one day we will find out..for now just hook it up. Some say it is for a cold crank sensor but since this wire sends 12v during crank if either cold OR hot that really doesn't hold water IMO.

just wire like this.  85 to the purple starter wiring that is hooked to the #1 starter wire in the car.  86 to ground.  30 to the 2nd starter wire in the car.  87a to nothing. and 87 to 12v constant.  do worry about cutting the 2nd start wire like cableguy suggest this is no need for this.