any adapters or similar items that would negate the need for cutting and splicing wires? thanks a lot.

 

Nope. You will have to cut the speedo wires

 

Hate to sound ignorant, but what is the yellow jacket install about or for? just never heard of it.

 

^ lol at your username and not knowing what it is.

its to adjust your speedometer when you buy different size rims from oem since the diameter of the wheel+rim might be different than the stock ones causing your speedometer to read incorrectly.

 

^^^^- or if you change your final drive gearing. i.e. 4.77's..

 

modifry had good instructions/pics to follow easily...

 

Gotcha! yea that is pretty funnylol. thanks for educating me on that.