Help with GM Kicker Sub/Amp Upgrade

Mille170 · November 7, 2023

I have read nearly every thread/post on the Kicker upgrade for our tucks and I am still a little confused by which kit I need. I have one of the oddball 2021 trucks that has the 8in screen but IOR code. RPO code confirmed by the build sheet for my truck's vin.

All info and threads point to me needing the 19417165 Kicker model with secondary amp, but that unit seems to be discontinued and/or out of stock everywhere. From my understanding the 19417165 and 19417166 are for the IOR and IOS coded truck but it looks like the 19417166 is the only one that is readily available. Install instructions for each kit appear to be the same, would the difference in each kit just be the plugs on the T harness that installs into the radio module? Would the 19417166 (IOS Model) kit for sure not work in an 8in scree IOR truck?

Last question, has someone installed the 19417165 kit in and 8in screen IOR truck? I think I have this all sorted out, its just odd to me that the 19417165 kit seems to be discontinued.

Appreciate the help.

Daniel Formichelli · November 8, 2023

I was in that debate for a few. Reached out to 404parts. Helped me decide and he thinks I am a secret agent.

I did the IOR to IOU swap after much needed assistance from Infotainment. So I have 8" screen. I also have the smaller 200 watt version. Pretty easy to install. Sounds good. Bought a kicker knob to adjust as needed. Just make sure you switch all the dip switches to up on the attached amp.

(DIP switches are Switch 1,2 and 3 are gain. There are 4 settings from all 3 down to all 3 up. Switch 4 is the remote turn on selection. Switch 5 turns the crossover on or off. Switch 6 adjusts the slope of the crossover from 24db (on) to 12db (off).)

200-Watt Subwoofer Kit by Kicker® – 404 Parts

No issues. Although lost storage space under seat. Plan on making a smaller one.

Edited November 8, 2023 by Daniel Formichelli

newdude · November 8, 2023

19 hours ago, Mille170 said:

I have read nearly every thread/post on the Kicker upgrade for our tucks and I am still a little confused by which kit I need. I have one of the oddball 2021 trucks that has the 8in screen but IOR code. RPO code confirmed by the build sheet for my truck's vin.

All info and threads point to me needing the 19417165 Kicker model with secondary amp, but that unit seems to be discontinued and/or out of stock everywhere. From my understanding the 19417165 and 19417166 are for the IOR and IOS coded truck but it looks like the 19417166 is the only one that is readily available. Install instructions for each kit appear to be the same, would the difference in each kit just be the plugs on the T harness that installs into the radio module? Would the 19417166 (IOS Model) kit for sure not work in an 8in scree IOR truck?

Last question, has someone installed the 19417165 kit in and 8in screen IOR truck? I think I have this all sorted out, its just odd to me that the 19417165 kit seems to be discontinued.

Appreciate the help.

IOR with 8 inch screen isn't an "oddball". There is IOR with 7" screen on WT, Custom and Custom TB, and then on LT, RST and LT Trail Boss come standard with IOR and 8" screen.

19417165 is the IOR kit and is discontinued.

The instructions for 19417166 is the IOS kit. The instructions may look the same, but that doesn't mean the product is the same. The kits are different for a reason...

You can still get 19417164 just the subwoofer however, those are available.

If you really want the 19417165, there is probably stock somewhere in the US at dealers.

Edited November 8, 2023 by newdude

Mille170 · November 8, 2023

Appreciate the help, now that I have started down this rabbit hole I am leaning toward a full integration harness and basic amp from John Adams then just doing a powered sub like a Kicker hideaway. Should be close to the same level of plug and play and a bit cheaper.