2005 Chevrolet Duramax Diesel Remote Start

you got it...you need the lock module for the multiplex system.   those trucks are cool though...don't need wait to start.....

tach is at the cluster though....if you want to do wait to start anyways, you can get that at the cluster as well

Tach and wait to start are also found UNDER the underhood fuse box wait to start DK blue...tach white

Depends on what you feel more comfortable taking apart. The dash or a fuse box. Ya gotta do a hood pin anways,

so I allways opt for the fusebox.

i agree, but the cluster is only 4 7mm's and it's out, just don't unplug it.....that'll set off codes....

if i can grab stuff inside, i usually opt for that....

especially when it's -30C outside and the vehicles are covered in snow......easier to stay dry when you are inside than under the hood!!