brantmacga

I'm really disappointed there is no headlight switch. I use that all the time when I'm working on the farm at night. I'm just not a fan of where trucks are going. Maybe the W/T or Custom will keep it.

Google for the upfitter electrical manual for your truck. I have a 2023 Silverado, and my connectors are nothing like what your pic shows. I looked through the ‘23 upfitter manual i have downloaded and didn’t see anything like what is in your picture.

sorry I never got a notification for this reply. Did you get it figured out or still need help? The resistors go between + & - on the front left and front right speaker wires. One of the pics in my post above shows a red circle around where I had to cut the gray ACM connector to make it work. The resistors are required to make the chimes and blinker sounds work.

this should be an OTA update, but GM had to change it to dealer updates after bricking trucks the last time they pushed it OTA. Suddenly their incompetence is my problem. This would also be the third time I’ve taken it to the dealership because of radio issues that have yet to be resolved.

dealer got me back in today for the update only to tell me it’s $170 charge and refused to do it as a warranty item. Truck has 38k miles. I’ve had this dealership do all of the service on my truck since new, will not return.

I had the serial data module recall update last week on my truck, and it no longer includes an update to the radio software. Searching online I see others reporting this as well. When I tried to schedule the recall appt, it was a 2/mo wait. Adding an oil change I didn't need right now moved that appt time update to within a couple days. Before leaving the dealership I found they didn't update the radio, went back inside to ask them to do it, told sorry you need another appt. So now I have to wait a few weeks to get it back in.

Posting as general info. I bought the GM Kicker 200W DSP amp and 200W sub (#19417166) for my 2023 LT and it works. I had to very slightly modify both the gray ACM connectors which involved cutting a small amount of plastic to make a groove line up to allow it to plug in (see pic). The DSP amp is listed as only being compatible with 2019-2021 IOS radios. I have the 13.4" IOK non-bose. I did have to add load resistors on the front speaker outputs to retain blinker and chime tones. I bought the sub new, but I found the DSP amp on eBay for $200 and figured it was worth a shot after seeing the pinouts are the same between IOS and IOK. The seller had removed the bracket so I fabricated one with aluminum flat bar.

Do you have any problems using Siri with this setup? Thanks