I hope we are wrong, but this is the inside of the chip. All it is a resistor in a box with 2 wires coming out.

http://www.zcar.com/forums/read/5/1946580/page=3

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2007 Tundra 5.7, Double Cab, SR5, Blue Streak

TRD (stickers removed), de-badged, Volant Intake, Zoomers exhaust , Doug Thorley headers, Leer 100R, Bedrug, Curt front mounted hitch, Sirius interface kit, Tekonsha Prodigy brake controller, OEM alarm activation, Wet Okole seat covers, Stubby Antenna, Folding Rear Seat Mod for Double Cab, Unichip,
Carriage Works Billet Grille