[f5fstop]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by fourfourto:
Just to let you know the cig/accy lighter/ socket shuts off after 20 min(of shutting off truck) if accy is left on. </div></BLOCKQUOTE>

It should never shut off, until the battery goes dead. Per the wiring diagrams, the accessory power outlets are powered directly from the B+ terminal of the battery, through one of two fuses. One 20A fuse (#51) protects one of the front accessory plugs, and a 30A fuse (45) protects the other front power outlet, as well as the rear power outlet.
The diagrams show no BCM control over these circuits.
The BCM will power down the interior lights if they are left on, and there is no switch movement for 20 minutes. This prevents the battery from going dead due to interior lights being left on.