2008 Chevrolet Silverado Remote Start

I'm getting conflicting information on the techsoft for the 07+ GM trucks.  On here the start wire is pink/black (for remote start integration), and something else at the BCM under the hood.  On directechs it says to use a 9.6K ohm resistor with the wire at the ignition harness.

So is a resistor required?

But how do you know which module is the best? bypass kits xpresskits just gives a list of them

I've got 2 08 trucks to do.  1 has OEM remote start, the other does not.

On the truck with OEM remote start, if I use the 1701g to trigger the OEM remote start, will I still be able to power the accessory wire on the truck?  My biggest complaint on these trucks is that when you remote start it, the climate control does what it wants.  It's 20* here, so I want the defrost on.  The OEM will not do that. 

I also use the idatalink modules.  In the GM1 firmware instructions it lists a transponder key cylinder ring.  This isn't used with the 1701g, so is it necessary with the idata module?

I like the Idatalink units, they really make it easy by supplying locks, triggers, even a tach wire. No relay/resistor BS either....

http://www.idatalink.com/store/index.php?l=product_detail&p=15

It isn't necessary, but we use them. The difference is current draw, wiring without the ring draws a little more voltage than with.....

So with the ADL-DS and GM3 firmware, how do you wire the starter?  Do you just tap the start wire at the ignition harness and your done just like any other install? 

there's too much out there.  Too many bypasses and different ways. Is there a DIY anywhere on this?  I wanna see this done a particular way, not any of this "whichever way you want".  I want to do the job and it not come back.  I have 2 1701G's and 1 ADS-DL in stock, so I can do it either way.

Thanks for any help thus far...

THanks for the reply Mike.  I hate to keep asking these questions, but I do understand what you just posted.

Instead of using the idatalink in this case, I have a 1701G that I need to use on something.  Will this module do everything the ADS module will or should I add the resistor/relay method?  The reason I ask is because I have 2 of the same trucks to do, but have 1 of each module in stock.