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Originally Posted by f5fstop
You MIGHT have to have the dealer setup the new radio to be recognized on the data bus. Not sure how the H2's radio theft control operates. On H3's if a new factory radio is installed it will go into lock mode until a Tech 2 is used to program the new radio to the data bus. Some models with older BCMs require the Tech 2 to program the vehicle's VIN into the radio.
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Unless the radio is brand new. If it's from another vehicle it will be VIN locked. If it's fresh, it should work without having to be unlocked with the Tech 2.
The 2 trucks probably work pretty much the same in this respect.